Test items of precipitated silica (precipitated hydrated silica)
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Test items of precipitated silica (precipitated hydrated silica)
The chemical formula of precipitated silica is SiO2•nH2O. Precipitation method silica testing items mainly include silica content, color, 45μm sieve residue, heating loss, ignition loss, pH value, total copper content, total manganese content, total iron content, phthalic acid two Butyl ester absorption value, water soluble matter, 300% constant elongation stress, 500% constant elongation stress, tensile strength, elongation at break, physical form, dispersibility, specific surface area and other indicators.
