Silica Gel
Yuanying silica gel does not dissolve in water, anysolvents, non-toxic tasteless, not burning. It has stable chemical properties,does not react with any material except strong alkali, hydrofluoric acid. Ithas open porous structure, high adsorption properties, good thermal stability,stable chemical properties, high mechanical strength, etc.
Addeddilute sulfuric acid (hydrochloric acid) into the aqueous solution of sodiumsilicate and let standing, thus becoming solid aqueous silicate gel. Used waterwashing to remove Na+ and SO4 2- (Cl-) ions dissolved in the electrolyte, afterdrying it is silica gel. Different manufacturing methods form differentmicroporous structure, different microporous structure form different models,such as macroporous silica gel, silochrom (type C silica gel), type B silicagel, fine-pored silica gel (type A silica gel).
Thereare type A silica gel, type B silica gel, type C silica gel, silica gel catlitter, silica alumina gel, blue silica gel, orange silica gel, FNG silica gel,pressure-changing adsorption silica gel
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