silica gel

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silica gel

silica gel chemical compound. It is a colloidal form of silica , and usually resembles coarse white sand. It may be prepared by partial dehydration of meta silicic acid, H ₂ SiO ₃ . Because it has many tiny pores, it has great adsorptive power. It is used as a drying agent, as a catalyst or catalyst carrier, and in purifying various substances. Silica aerogel is fully dehydrated silica gel; it is very porous and is often used in insulation, e.g., for refrigerators.

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"silica gel." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 21 Dec. 2009 <http://www.encyclopedia.com>.

"silica gel." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (December 21, 2009). http://www.encyclopedia.com/doc/1E1-silicage.html

"silica gel." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved December 21, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-silicage.html

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silica gel

A Dictionary of Food and Nutrition | 2005 | | Â© A Dictionary of Food and Nutrition 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

silica gel A drying agent.

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DAVID A. BENDER. "silica gel." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. 21 Dec. 2009 <http://www.encyclopedia.com>.

DAVID A. BENDER. "silica gel." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. (December 21, 2009). http://www.encyclopedia.com/doc/1O39-silicagel.html

DAVID A. BENDER. "silica gel." A Dictionary of Food and Nutrition. 2005. Retrieved December 21, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O39-silicagel.html

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silica gel

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

sil·i·ca gel • n. hydrated silica in a hard granular hygroscopic form used as a desiccant.

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Free newspaper and magazine articles

	Silica gel is in urgent need of quality improvement.(Inorganics) Magazine article from: China Chemical Reporter; 12/26/2008
	Commercial Application of carrier silica gel.(Lanzhou Petrochemical Company Ltd. Research Institute)(Brief Article) Magazine article from: China Chemical Reporter; 1/6/2006
	China Chemical Products Market Research Reports.(silica gel)(Brief Article)(Industry Overview)(Statistical Data Included) Magazine article from: China Chemical Reporter; 9/26/2001

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