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Contact SupplierSodium fluorosilicate White granules or crystalline powders. Odorless. Tasteless. Burning (300 ° C) and then decomposed into sodium fluoride and silicon tetrafluoride. in alkali liquid. Decomposition to fluoride and silica.it is moisture absorption. Dissolved in 150 parts of cold  water, 40 parts of boiling water, insoluble in ethanol. The cold water solution was neutral, in the hot water decomposition was acidic. The relative density of 2.679. Medium toxic, half lethal dose (rat, oral) 125mg. Irritating Synonyms :Sodium fluorosilicate;destruxol applex;disodium hexafluorosilicateCAS no:16893-85-9Molecular formula:Na2SiF6 Molecular weight:M=188.06 Appearance : white crystal powder Sodium fluorosilicate specifications Content 99% Min Fe 0.02% Max Free acid (HCl) 0.1%Max Pb 0.02%Max Water-insoluable 0.1%Max Loss of drying Sodium fluorosilicate main Used in galss industrial as apalizer.building materials as coagulator,antiseptic for wood.plastic industrial as loading agent.