Fluosilicic Acid Formula: H2SiF6 CAS NO.:16961-83-4 M.W:144.09 Properties: It is colorless or light transparent liquid. It has excitant smell, strong corrosiveness and poison. Fluorsilicic acid volatilizes easily. It is corrosive to lead and other metal. Specification:(%)   Hight-grade First-grade Assay(H2SiF6) 37 min. 28 min. HF 1 max. 1 max. SO4 0.3 max. 0.3 max. Fe 0.01max. 0.01 max. Pb 0.005 max. 0.005 max. Application: It is used as row materials for fluosilicate, disinfectant(1-2% of solution) of brewing industry and used for refining lead of electrolysis. Packing: 25Kg net, packing with plastic barrel.   Magnesium Fluosilicate Formula: MgSiF6.6H2O CAS NO.:16949-65-8 M.W. :274.48 Properties: Colorless or white crystals , not easy deliquescence, but effloresce to lose crystal water, easily soluble in water, dilute acid, hardly soluble in HF, insoluble in alcohol. Its aqueous solution appears acidity. Specification:(%) MgSiF6 98.0 min. Water-insoluble matter 0.25max. H2SiF6 0.2 max. MgSO4 0.5 max. H2O 0.6 max. Application: Hardening agent for concrete and waterproof agent, handle fluoride efflorescence of silica building, ceramic industry, prevent and kill off insect pests from textile and insecticide etc. Storage: Store in dry place and prevent rupture. Packing: 25Kg net , pack sealed with double plastic bags lined plastic woven sack.   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. Sodium Fluosilicate Formula: Na2SiF6 CAS NO.:16893-85-9 M.W: 188.06 Properties: White crystals; no odour ,no taste, with obsorbility and specific gravity 2.679; insoluble in ethanol, solubility in acid is bigger than in water; forms Fluoride and silica after dissolving in alkaline liquor; toxic. Specification:(%) Assay (Na2SiF) 98.0 min. Moisture 0.5 max. Water-insoluble matter 0.5 max. Heavy metal(Pb,Hg,Bi,Cu) 0.08 max. Application: Milky agent and fusing agent for glass and enamel; preserving agent for wood; agricultural insecticide ; hygroscopic agent for acid-resisting cement; coagulation accelerator in natural emulsion products. Additive in electroplating zinc , nickel and iron in three floors; stuffing agent in plastics; pharmacy, fluorating treatment for drinking water and for man-made crystals and Sodium Fluoride. Storage: Store at a ventilating, and dry place, keep away from food. Packing: 25Kg net, double plastic bags lined plastic woven bag. Zinc Fluosilicate Formula: ZnSiF6.6H2O CAS NO.:16871-71-9 M.W: 315.54 Properties: Hexagon white crystals; soluble in water and inorganic acid; decomposes by heat and produces silicon tetrafluoride(SiF4), water(H2O) and zinc fluoride(ZnF2) at its melting point; has toxic. Specification:(%) Assay (ZnSiF.6H2O) 98.0 min. Water-insoluble matter 0.6 max. Sulphate (SO4) 0.5 max. Chloride (Cl) 0.6 max. Fe 0.2 max. H2O 0.6 max. Application: Comcrete harderner, scour, mothproofing agent, preservative, catalyst for polyester fibre. Storage: Store with seal hermetically, prevent bag burst and wet. Packing: 25Kg net, double plastic bags lined plastic woven sack.