Silica sol is a colorless, transparent or milky white translucent colloidal liquid. Its molecular composition is expressed as mSiO2·nH2O, and it has a certain viscosity. The processes for preparing silica sol include: the method of treating dilute sodium silicate solution with ion exchange resin; Methods for neutralizing dilute solutions of water glass; methods for hydrolyzing silicate esters, etc. The basic principle is to remove sodium ions that are easily soluble in water. Main uses: Used as silicon steel sheet treatment agent, used in catalyst preparation, used as raw material for battery electrolyte, used as additive in paper industry, used as binder in precision casting, used as processing binder for refractory materials, used in textile coating industry auxiliaries, etc.
