Coarse-pored silica gel is milky white particles.Divided into two types: spherical and massive.The main component is silica, which is insoluble in water and inorganic salts.This product is mainly used to dry various industrial gases, absorb organic acids and moisture in transformer oil, polymer proteins in industrial fermentation process, polyvalent harmful elements in water, etc., purification and separation of drugs, moisture-proof articles, and bedding for pets , Catalyst carrier, is also the basic raw material for further processing of fine silica gel series products.