silica gel, chemical compound. It is a colloidal form of silica silica or silicon dioxide, chemical compound, SiO₂. It is insoluble in water, slightly soluble in alkalies, and soluble in dilute hydrofluoric acid. Pure silica is colorless to white.
..... Click the link for more information. , and usually resembles coarse white sand. It may be prepared by partial dehydration of metasilicic acid, H₂SiO₃. 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 aerogel, any of a group of extremely light and porous solid materials; the lightest is less than four times as dense as dry air. Aerogels are produced from certain gels (see colloid ) by heating the gel under pressure, which causes the liquid in the gel to become
..... Click the link for more information. is fully dehydrated silica gel; it is very porous and is often used in insulation, e.g., for refrigerators.

silica gel

A highly absorbent form of silicon dioxide often wrapped in small bags and packed with equipment to absorb moisture during shipping and storage.

silica gel [′sil·ə·kə ¦jel]

(inorganic chemistry)

A colloidal, highly absorbent silica used as a dehumidifying and dehydrating agent, as a catalyst carrier, and sometimes as a catalyst.

silica gel (redirected from Silica gel crystals)

silica gel

silica gel
(redirected from Silica gel crystals)