C型硅膠又稱粗孔硅膠，為乳白色半透明顆粒。分為球形和塊狀兩類。主要成分為SiO2·nH2O，不溶于水和無機酸，溶于氫氟酸和濃苛性堿溶液。其內(nèi)部結(jié)構(gòu)為孔容0.78-1.00ml/g，孔徑80-100?，比表面積300-500m2/g。

Type C silica gel, also known as coarse porous silica gel, It is a milky translucent particle. It is divided into two types: spherical and block. The main component is SiO2·nH2O, insoluble in water and inorganic acid, soluble in hydrofluoric acid and concentrated caustic soda solution. The pore volume is 0.78-1.00ml/g, pore size 80-100?, specific surface area 300-500㎡/g.

本品主要用于干燥各種工業(yè)氣體，吸附變壓器油中的有機酸和水分、工業(yè)發(fā)酵過程中的高分子蛋白，水中多價有害元素等，藥物提純和分離，物品防潮以及飼養(yǎng)寵物的墊料，催化劑載體，也是進一步加工精細硅膠系列產(chǎn)品的基礎(chǔ)原料。

The product is mainly used for drying various industrial gases, adsorption of organic acids and moisture in transformer oil, polymer protein in industrial fermentation process, multi-valuable harmful elements in water, etc., purification and separation of drugs, moisture-proof items and pet feeding pad, catalyst carrier, and also the basic raw materials for further processing of fine silica gel products.