It is used as antiseptic in timber industry, hygroscopic agent of acid-resisting concrete, solidifying agent in natural latex products, additive in plating with zinc, nickel, iron and filler in plastic and fluorinating agent in pharmaceuticals and drinking water. It is used to produce insecticide in pesticide industry and sodium fluoride in man-made cryolite.
- Specifications:
Sodium fluorosilicate(based on dry): 99%min
Iron: 0. 02%max
Free acid(based on HCL): 0. 1% max
Heave metal(based on Pb): 0. 02% max
Water-insoluble matter: 0. 4% max
Loss on Drying at 105C: 0. 3% max
Fineness(through 250 um test bolter): 90%min