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Precipitated silica


Chemical formula:

SiO2·nH2O

Molecular weight:

60.084

Standard executed:

HG/T 3061-2009

Properties:

White highly dispersed amorphous powder or flocculent powder in appearance, melting point 1750℃, insoluble in water and the vast majority of acids, soluble in caustic soda and hydrofluoric acid. Does not decompose and burn in high tempera-ture. Has high electrical insulation, water absorption and porosity, stability, reinforcement, thickening, thixotropy, high purity, large specific surface-area, strong adsorption, good dispersion.

Application:

Widely used in plastics, rubber, paper, paint, dyes, cosmetics and inks and other fields as a natural rubber and synthetic rubber reinforcing agent synthetic resin filler, ink and paint thickener, paint matting agent, toothpaste friction agents, paper fillers and pesticide dispersants.



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