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                Potassium Fluosilicate

                Formula: K2SiF6
                CAS NO.: 16871-90-2
                M.W: 220.25
                Properties: White odorless crystals or powder; weak acidity;insoluble in water, aqueous ammonia and ethanol; soluble in hydrochloric acid; decompose by heat to form potassium fluoride(KF) and silicon tetrafluoride(SiF4); hydrolyze in hot water to form hydrogen fluoride(HF) and silicate acid(H2SiO3); have toxic.
                Specification:(%)

                K2SiF6(based on dry)
                98.0 min.
                Free acid (HF)
                0.15 max.
                Water-insoluble matter
                0.5 max.
                Fe
                0.05 max.
                Heavy metal (Pb)
                0.50 max.
                H2O
                0.5max.
                Size (throug 60mesh)
                90 min.

                Application: Wood preservation; ceramics made; metallurgy of aluminium and magnesium; optical glass; synthetic mica and antisepsis.
                Storage: Store with seal, prevent bag burst.
                Packing: 25Kg net, packing with double plastic bags lined plastic woven sack.


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