Silica Gel For Variable Pre is a type of amorphous & porous form of SiO2 with large surface area. It is most commonly utilized as a desiccant for absorption of moisture. This silica gel is provided in uniform size beads that are packed before use. It is also known to find application in various analytical chemistry analyses including chromatography. Silica serves as the best stationary phase for column chromatography technique. Being virtually odorless in nature, it is also widely used as cat litter. In high frequency radio & transmission systems, Silica Gel For Variable Pre is utilized for keeping relative humidity as low as possible.