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The Silicone

Oct 19, 2019

Is a hard, amorphous chain and network structure of silicic acid polymer particles, the molecular formula is sio2.nh2o, a hydrophilic polar adsorbent. It is to use sulfuric acid to process the aqueous solution of sodium silicate to generate a gel, and wash it to remove sodium sulfate after drying, then get glassy silica gel, it is mainly used for drying, gas mixture and separation of petroleum components. The silica gel used in industry is divided into two types: coarse hole and fine hole. Under the condition of saturated relative humidity, the adsorption capacity of coarse silica gel can reach more than 80% of the weight of adsorbent, while under the condition of low humidity, the adsorption capacity is much lower than that of fine silica gel.