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silica gel

noun, Chemistry
a highly adsorbent gelatinous form of silica, used chiefly as a dehumidifying and dehydrating agent.
Origin of silica gel
1915-20 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for silica gel
  • silica gel is a desiccant, and the purpose of a desiccant is to absorb or adsorb gaseous water vapor.
  • Subsequently all samples are purified by silica gel column chromatography and alumina column chromatography.
  • The methanol is collected in deionized distilled water and adsorbed on silica gel.
British Dictionary definitions for silica gel

silica gel

an amorphous form of silica capable of absorbing large quantities of water: used in drying gases and oils, as a carrier for catalysts and an anticaking agent for cosmetics
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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