Silicagel definition of Silicagel in the Free Online Encyclopedia.

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.

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 (redirected from Silicagel)

silica gel
(redirected from Silicagel)