Difference between revisions of "Ethyl silicate"

Latest revision as of 15:29, 5 August 2022

Description

A liquid silicate that hydrolyzes to form a colorless, transparent film of Silica. For application, ethyl silicate is dissolved in an anhydrous ethanol solution. Small amounts of water will cause the solution to gel. Once applied, moisture from the atmosphere initiates irreversible hydrolyzation producing a solid silica film in less than an hour. Ethyl silicate was introduced as a paint vehicle in England in 1931 for painting outdoor murals. It is used with Alkali and Acid resistant Fresco pigments. The silicate colors are durable and resistant to weathering. More recently, ethyl silicate has been used for consolidating, strengthening and weatherproofing Stone, mortars, and cements.

Chemical structure

Synonyms and Related Terms

silicic acid tetraethyl ester; tetraethyl silicate; tetraethyl orthosilicate; tetraethoxysilane

Risks

Combustible. Flash point = 40.6 C
Irritant to nose, eyes, lungs, and skin.
ThermoFIsher: SDS

Physical and Chemical Properties

Miscible in ethanol. Insoluble in water.

Composition	(C2H5)4SiO4
CAS	78-10-4
Melting Point	-77 C
Density	0.9356 g/ml
Molecular Weight	mol. wt. = 208.33
Boiling Point	165-166 C

Resources and Citations

Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)

Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 3895

Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000

Paint in America, Robert Moss (ed.), John Wiley & Sons, New York, 1994 Comment: M.Phillips, "A Victorian Trompe l'Oeil"

@@ Line 1: / Line 1: @@
 == Description ==
-A liquid silicate that hydrolyzes to form a colorless, transparent film of [http://cameo.mfa.org/materials/fullrecord.asp?name=silica silica]. For application, ethyl silicate is dissolved in an anhydrous [http://cameo.mfa.org/materials/fullrecord.asp?name=ethyl alcohol ethanol] solution. Small amounts of water will cause the solution to gel. Once applied, moisture from the atmosphere initiates irreversible hydrolyzation producing a solid silica film in less than an hour. Ethyl silicate was introduced as a paint vehicle in England in 1931 for painting outdoor murals. It is used with [http://cameo.mfa.org/materials/fullrecord.asp?name=alkali alkali] and [http://cameo.mfa.org/materials/fullrecord.asp?name=acid acid] resistant [http://cameo.mfa.org/materials/fullrecord.asp?name=fresco pigments fresco pigments]. The silicate colors are durable and resistant to weathering. More recently, ethyl silicate has been used for consolidating, strengthening and weatherproofing [http://cameo.mfa.org/materials/fullrecord.asp?name=stone stone], [http://cameo.mfa.org/materials/fullrecord.asp?name=mortar (masonry) mortars], and [http://cameo.mfa.org/materials/fullrecord.asp?name=cement cements].
+A liquid silicate that hydrolyzes to form a colorless, transparent film of [[silica]]. For application, ethyl silicate is dissolved in an anhydrous [[ethyl alcohol|ethanol]] solution. Small amounts of water will cause the solution to gel. Once applied, moisture from the atmosphere initiates irreversible hydrolyzation producing a solid silica film in less than an hour. Ethyl silicate was introduced as a paint vehicle in England in 1931 for painting outdoor murals. It is used with [[alkali]] and [[acid]] resistant [[fresco pigments]]. The silicate colors are durable and resistant to weathering. More recently, ethyl silicate has been used for consolidating, strengthening and weatherproofing [[stone]], [[mortar (masonry)|mortars]], and [[cement|cements]].
+[[[SliderGallery rightalign|ethyl silicate.jpg~Chemical structure]]]
 == Synonyms and Related Terms ==
 silicic acid tetraethyl ester; tetraethyl silicate; tetraethyl orthosilicate; tetraethoxysilane
-[[[SliderGallery rightalign|ethyl silicate.jpg~Chemical structure]]]
+== Risks ==
+* Combustible.  Flash point = 40.6 C
+* Irritant to nose, eyes, lungs, and skin.
+* ThermoFIsher: [https://www.fishersci.com/store/msds?partNumber=AC157811000&productDescription=TETRAETHYL+ORTHOSILICATE+100ML&vendorId=VN00032119&countryCode=US&language=en SDS]
-== Other Properties ==
+== Physical and Chemical Properties ==
 Miscible in ethanol.  Insoluble in water.
@@ Line 22: / Line 26: @@
 |-
 ! scope="row"| Melting Point
-| -77
+| -77 C
 |-
 ! scope="row"| Density
-| 0.9356
+| 0.9356 g/ml
 |-
 ! scope="row"| Molecular Weight
@@ Line 31: / Line 35: @@
 |-
 ! scope="row"| Boiling Point
-| 165-166
+| 165-166 C
 |}
-== Hazards and Safety ==
+== Resources and Citations ==
-Combustible.  Flash point = 40.6 C
+* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
-Irritant to nose, eyes, lungs, and skin.
+* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
-Mallinckrodt Baker: [http://www.jtbaker.com/msds/englishhtml/t1131.htm MSDS]
-== Authority ==
-* Ralph Mayer, Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
-* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
 * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry 3895
@@ Line 53: / Line 49: @@
 * ''Paint in America'', Robert Moss (ed.), John Wiley & Sons, New York, 1994  Comment: M.Phillips, "A Victorian Trompe l'Oeil"
 [[Category:Materials database]]