https://cameo.mfa.org/index.php?title=Silica_gel&feed=atom&action=history Silica gel - Revision history 2024-03-28T17:54:32Z Revision history for this page on the wiki MediaWiki 1.35.3 https://cameo.mfa.org/index.php?title=Silica_gel&diff=96387&oldid=prev MDerrick at 16:47, 11 August 2023 2023-08-11T16:47:59Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:47, 11 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb water and other pollutants. Silica gel Type A with approximately pore size of 2.5 nm is most often used for vapor-phase moisture.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb water and other pollutants. Silica gel Type A with approximately pore size of 2.5 nm is most often used for vapor-phase moisture.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as[[cobaltous%20chloride|cobalt chloride]]  (blue when dry <del class="diffchange diffchange-inline">and </del>pink when moist) or methyl violet (orange when dry <del class="diffchange diffchange-inline">then </del>green when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as [[cobaltous%20chloride|cobalt chloride]]  (blue when dry<ins class="diffchange diffchange-inline">/</ins>pink <ins class="diffchange diffchange-inline">when moist), iron salts (either orange or brown when dry/colorless </ins>when moist) or methyl violet (orange when dry<ins class="diffchange diffchange-inline">/</ins>green when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See product comparison information at [[Silica gel, commercial]].  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See product comparison information at [[Silica gel, commercial]].  </div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96379&oldid=prev MDerrick at 15:20, 11 August 2023 2023-08-11T15:20:07Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:20, 11 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb water and other pollutants.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb water and other pollutants<ins class="diffchange diffchange-inline">. Silica gel Type A with approximately pore size of 2.5 nm is most often used for vapor-phase moisture</ins>.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as[[cobaltous%20chloride|cobalt chloride]]  (blue when dry and pink when moist) or methyl violet (orange when dry then green when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as[[cobaltous%20chloride|cobalt chloride]]  (blue when dry and pink when moist) or methyl violet (orange when dry then green when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96378&oldid=prev MDerrick at 15:16, 11 August 2023 2023-08-11T15:16:27Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:16, 11 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb water and other pollutants.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb water and other pollutants.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as[[cobaltous%20chloride|cobalt chloride]]  (blue when dry and pink when moist)<del class="diffchange diffchange-inline">, a blue dye, </del>or methyl violet (orange when dry then <del class="diffchange diffchange-inline">dark </del>when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as[[cobaltous%20chloride|cobalt chloride]]  (blue when dry and pink when moist) or methyl violet (orange when dry then <ins class="diffchange diffchange-inline">green </ins>when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See product comparison information at [[Silica gel, commercial]].  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See product comparison information at [[Silica gel, commercial]].  </div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96377&oldid=prev MDerrick at 15:13, 11 August 2023 2023-08-11T15:13:02Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:13, 11 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder, or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas masks, silica gel adsorbs pollutants as well as water. It is used as a desiccant, pollutant sorbent, and as a humidity buffering agent.  As a RH buffer, silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb <ins class="diffchange diffchange-inline">water and other pollutants</ins>.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as[[cobaltous%20chloride|cobalt chloride]]  (blue when dry and pink when moist), a blue dye, or methyl violet (orange when dry then dark when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include a humidity indicator, such as[[cobaltous%20chloride|cobalt chloride]]  (blue when dry and pink when moist), a blue dye, or methyl violet (orange when dry then dark when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96376&oldid=prev MDerrick at 15:12, 11 August 2023 2023-08-11T15:12:21Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:12, 11 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas <del class="diffchange diffchange-inline">mask</del>, silica gel adsorbs pollutants as well as water. It is used as a <del class="diffchange diffchange-inline">dessicant</del>, pollutant sorbent and as a humidity buffering agent.  <del class="diffchange diffchange-inline">Silica </del>gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment.  </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder<ins class="diffchange diffchange-inline">, </ins>or beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas <ins class="diffchange diffchange-inline">masks</ins>, silica gel adsorbs pollutants as well as water. It is used as a <ins class="diffchange diffchange-inline">desiccant</ins>, pollutant sorbent<ins class="diffchange diffchange-inline">, </ins>and as a humidity buffering agent.  <ins class="diffchange diffchange-inline">As a RH buffer, silica </ins>gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment<ins class="diffchange diffchange-inline">. Silica gel performs best at room temperature (70-80F) and high humidity (60-90%). The pore size in silica gel is related to its ability to adsorb</ins>.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] <del class="diffchange diffchange-inline">as a humidity indicator </del>(blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include <ins class="diffchange diffchange-inline">a humidity indicator, such as</ins>[[cobaltous%20chloride|cobalt chloride]] <ins class="diffchange diffchange-inline"> </ins>(blue when dry and pink <ins class="diffchange diffchange-inline">when moist), a blue dye, or methyl violet (orange when dry then dark </ins>when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See product comparison information at [[Silica gel, commercial]].  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See product comparison information at [[Silica gel, commercial]].  </div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96365&oldid=prev MDerrick at 16:06, 10 August 2023 2023-08-10T16:06:31Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:06, 10 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7" >Line 7:</td> <td colspan="2" class="diff-lineno">Line 7:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* See <del class="diffchange diffchange-inline">also </del>[[Silica gel, commercial]].  </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* See <ins class="diffchange diffchange-inline">product comparison information at </ins>[[Silica gel, commercial]].  </div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Synonyms and Related Terms ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Synonyms and Related Terms ==</div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96359&oldid=prev MDerrick: /* Synonyms and Related Terms */ 2023-08-09T14:07:12Z <p><span dir="auto"><span class="autocomment">Synonyms and Related Terms</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:07, 9 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l13" >Line 13:</td> <td colspan="2" class="diff-lineno">Line 13:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>amorphous silica; gel de silice (Fr.); dessicant</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>amorphous silica; gel de silice (Fr.); dessicant</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Brand names: Britesorb [PQ Corp.]; Dri-die; Art<del class="diffchange diffchange-inline">-Sorb® </del>[<del class="diffchange diffchange-inline">Fuji Silysia</del>]; GORE-TEX® silica tiles; Arten gel; Arten tiles; Aerosil; Prosorb, Rhapid Gel; Rhapid Pak; Scavengel</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Brand names: Britesorb [PQ Corp.]; Dri-die; Art <ins class="diffchange diffchange-inline">Sorb </ins>[<ins class="diffchange diffchange-inline">Creative Humidity</ins>]; GORE-TEX® silica tiles; Arten gel; Arten tiles; Aerosil; Prosorb, Rhapid Gel; Rhapid Pak; Scavengel</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Personal Risks ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Personal Risks ==</div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96263&oldid=prev MDerrick at 14:49, 3 August 2023 2023-08-03T14:49:08Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:49, 3 August 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Description ==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder <del class="diffchange diffchange-inline">of </del>beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas mask, silica gel adsorbs pollutants as well as water. It is used as a dessicant, pollutant sorbent and as a humidity buffering agent.  Silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment.  </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder <ins class="diffchange diffchange-inline">or </ins>beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas mask, silica gel adsorbs pollutants as well as water. It is used as a dessicant, pollutant sorbent and as a humidity buffering agent.  Silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment.  </div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]], [[Rhapid Gel sheets|Rhapid Gel]], and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96256&oldid=prev MDerrick at 19:18, 20 July 2023 2023-07-20T19:18:40Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:18, 20 July 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder of beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas mask, silica gel adsorbs pollutants as well as water. It is used as a dessicant, pollutant sorbent and as a humidity buffering agent.  Silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder of beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas mask, silica gel adsorbs pollutants as well as water. It is used as a dessicant, pollutant sorbent and as a humidity buffering agent.  Silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment.  </div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]] and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]]<ins class="diffchange diffchange-inline">, [[Rhapid Gel sheets|Rhapid Gel]], </ins>and PROsorb. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See also [[Silica gel, commercial]].  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See also [[Silica gel, commercial]].  </div></td></tr> </table> MDerrick https://cameo.mfa.org/index.php?title=Silica_gel&diff=96255&oldid=prev MDerrick at 19:15, 20 July 2023 2023-07-20T19:15:50Z <p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:15, 20 July 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder of beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas mask, silica gel adsorbs pollutants as well as water. It is used as a dessicant, pollutant sorbent and as a humidity buffering agent.  Silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>An amorphous material of [[silica|silica]] available as granules, powder of beads. Silica gel is chemically inert, very porous, and hygroscopic. It has an internal network of interconnecting microscopic pores, yielding a typical surface area of 700-800 square meters per gram. First patented in 1919, for use in gas mask, silica gel adsorbs pollutants as well as water. It is used as a dessicant, pollutant sorbent and as a humidity buffering agent.  Silica gel absorbs moisture in humid environments and releases water in dry air. Once equilibrated to set moisture level, silica gel will maintain that humidity level in a closed environment.  </div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]] and <del class="diffchange diffchange-inline">[[Gore-Tex|GORE-TEX®]] silica tiles</del>. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Examples of silica gel products preconditioned as humidity buffers are [[Art-Sorb|Art-Sorb®]], [[Arten Gel|Arten gel]] and <ins class="diffchange diffchange-inline">PROsorb</ins>. Silica gel that is saturated with water can regenerated with heat (120 C for 2 hours) and used again. Some brands of commercial silica gel include [[cobaltous%20chloride|cobalt chloride]] as a humidity indicator (blue when dry and pink when moist). Silica gel has also been used as a [[desiccant]] in [[Dri-die|Dri-die]] cockroach formulation.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See also [[Silica gel, commercial]].  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* See also [[Silica gel, commercial]].  </div></td></tr> </table> MDerrick