B型硅膠為半透明顆粒，分為球形和塊狀兩類。主要成分為SiO2·nH2O，不溶于水和無機(jī)酸，溶于氫氟酸和濃苛性堿溶液。機(jī)械強(qiáng)度高，耐磨性好。其內(nèi)部結(jié)構(gòu)為孔容0.50-0.80ml/g，孔徑50-80?，比表面積450-600㎡/g。 

Type B silica gel is a translucent particle, it is divided into two types: spherical and bolck. The main component is SiO2·nH2O, insoluble in water and inorganic acid, soluble in hydrofluoric acid and concentrated caustic soda solution. High mechanical strength, good wear resistance. The pore volume is 0.50-0.80ml/g, pore size 50-80?, specific surface area 450-600㎡/g.

本品主要用作空氣濕度調(diào)節(jié)劑、催化劑及催化劑載體，制作香味硅膠和飼養(yǎng)物的墊料，以及用作層析硅膠等精細(xì)化工產(chǎn)品的原料。

The product is mainly used as air humidity regulator, catalyst and catalyst carrier, bedding material for making scented silica gel and feeding animals, and raw material for fine chemical products such as chromatographic silica gel.