Difference between revisions of "Silica gel"
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== Description == | == Description == | ||
| − | Amorphous powder or granules of [http://cameo.mfa.org/materials/fullrecord.asp?name=silica silica]. Silica gel is chemically inert, very porous and hygroscopic. It is used as a 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. Examples of silica gel products preconditioned as humidity buffers are [http://cameo.mfa.org/materials/fullrecord.asp?name=Art-Sorb Art- | + | Amorphous powder or granules of [http://cameo.mfa.org/materials/fullrecord.asp?name=silica silica]. Silica gel is chemically inert, very porous and hygroscopic. It is used as a 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. Examples of silica gel products preconditioned as humidity buffers are [http://cameo.mfa.org/materials/fullrecord.asp?name=Art-Sorb%C2%AE Art-Sorb®], [http://cameo.mfa.org/materials/fullrecord.asp?name=Arten%20gel Arten gel] and [http://cameo.mfa.org/materials/fullrecord.asp?name=GORE-TEX%C2%AE GORE-TEX®] silica tiles. Silica gel that is saturated with water can be dried by heat (110-200 C) and used again. Some brands of commercial silica gel include [http://cameo.mfa.org/materials/fullrecord.asp?name=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 [http://cameo.mfa.org/materials/fullrecord.asp?name=Dri-die Dri-die] cockroach formulation. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | amorphous silica; gel de silice (Fr.); Britesorb [PQ Corp.]; Dri-die; Art- | + | amorphous silica; gel de silice (Fr.); Britesorb [PQ Corp.]; Dri-die; Art-Sorb® [Fuji Silysia]; GORE-TEX® silica tiles; Arten gel; Arten tiles |
== Hazards and Safety == | == Hazards and Safety == | ||
| Line 20: | Line 20: | ||
== Authority == | == Authority == | ||
| − | * | + | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 710 |
| − | * | + | * Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) |
| − | * | + | * Marjorie Shelley, ''The Care and Handling of Art Objects'', The Metropolitan Museum, New York, 1987 |
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
| − | * | + | * Hermann Kuhn, ''Conservation and Restoration of Works of Art and Antiquities'', Butterworths, London, 1986 |
| − | * | + | * Lynda A. Zycherman, J.Richard Schrock, ''A Guide to Museum Pest Control'', FAIC and Association of Systematics Collections, Washington DC, 1988 |
* ''Matte Paint: Its history and technology, analysis, properties and conservation treatment'', Eric Hansen, Sue Walston, Mitchell Bishop (ed.), J. Paul Getty Trust, Los Angeles, Vol. 30 of AATA, 1993 | * ''Matte Paint: Its history and technology, analysis, properties and conservation treatment'', Eric Hansen, Sue Walston, Mitchell Bishop (ed.), J. Paul Getty Trust, Los Angeles, Vol. 30 of AATA, 1993 | ||
| − | * | + | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 |
| − | * | + | * Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002 |
| − | * | + | * Marie Svoboda, Conservation Survey Index, unpublished, 1997 |
* ''A Glossary of Paper Conservation Terms'', Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998 | * ''A Glossary of Paper Conservation Terms'', Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998 | ||
| − | * | + | * Website address 1 Comment: AMOL reCollections Glossary -http://amol.org.au/recollections/7/c/htm |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 07:33, 24 July 2013
Description
Amorphous powder or granules of silica. Silica gel is chemically inert, very porous and hygroscopic. It is used as a 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. Examples of silica gel products preconditioned as humidity buffers are Art-Sorb®, Arten gel and GORE-TEX® silica tiles. Silica gel that is saturated with water can be dried by heat (110-200 C) and used again. Some brands of commercial silica gel include 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 cockroach formulation.
Synonyms and Related Terms
amorphous silica; gel de silice (Fr.); Britesorb [PQ Corp.]; Dri-die; Art-Sorb® [Fuji Silysia]; GORE-TEX® silica tiles; Arten gel; Arten tiles
Hazards and Safety
Noncombustible.
Hygroscopic. Contact may cause irritation.
Additional Information
R. Lafontaine, "Silica Gel", Technical Bulletin No. 10, Canadian Conservation Institute, October 1984
Authority
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 710
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Marjorie Shelley, The Care and Handling of Art Objects, The Metropolitan Museum, New York, 1987
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
- Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988
- Matte Paint: Its history and technology, analysis, properties and conservation treatment, Eric Hansen, Sue Walston, Mitchell Bishop (ed.), J. Paul Getty Trust, Los Angeles, Vol. 30 of AATA, 1993
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
- Marie Svoboda, Conservation Survey Index, unpublished, 1997
- A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
- Website address 1 Comment: AMOL reCollections Glossary -http://amol.org.au/recollections/7/c/htm