Фторсиликат натрия с чистотой 99%

Sodium fluorosilicate with purity 99% CAS No. :16893-85-9 UN No.:2674 HS No.: 2826901000 Molecular weight :188.06 [Properties]: Sodium fluorosilicate is odorless and tasteless crystalline or powder. molecular formula Na2SiF6, Stable at normal temperature and pressure; It is hard to dissolve in water and acid.[Quality standard]:qualified with the standard [GB3252-2000].Item Standard values(%) Test result Appearance White powder White powder Sodium fluorosilicate (Na2SiF6) >=98.5 99.0 Loss of weight on drying at 105°C <0.30 0.30 Free acid (as HCL) =<0.1 0.047 Chlorides(CL) =<0.15 0.11 Sulfate (SO4) =<0.25 0.23 Fe =<0.02 0.02 H2O =<0.4 0.18 Fineness >=90 99 [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.[Packing]: polyethylene weaving inner lined with plastic bag. Net weight is 25kg(exported packing). [storage and transportation ]: Inorganic toxic substance, and should be stored in dry and adequately ventilated warehouse, and may not be co-stored or co-transported with sulfuric acid and edible food.