- 分子式:
- Na2SiF6
- 分子量:
- 188.06
- 含量:
- 99%
English name
Molecular formula
Molecular weight
[Physical and chemical properties] Colorless hexagonal crystal. Odorless and tasteless. Hygroscopic. Relative density. Soluble in solvents such as ether, insoluble in alcohol. Solubility in acid is greater than in water. Decomposes in alkaline solution to produce fluoride and silica. After heating, it decomposes into sodium fluoride and silicon tetrafluoride. poisonous!
【Application】Used as opalescent agent for glass and enamel, cosolvent, wood preservative, agricultural insecticide, and moisture absorber for acid-resistant cement. It is used as a coagulant in natural latex products, as an additive in electroplated zinc-nickel-iron plating, and as a plastic filler. In addition, it is also used in the fluoridation treatment of pharmaceuticals and drinking water, and in the manufacture of artificial cryolite and sodium fluoride.
【Quality Standard】
Excellent product
First-class product
Qualified product
Appearance
> White crystal
Loss on drying,
Sodium fluorosilicate on a dry basis,
Free acid on a dry basis
Water-insoluble matter,
Fineness through/test sieve,
[Packaging, Storage and Transportation] Packed in woven bags lined with polyethylene plastic bags, net weight per bag. Should be stored in a ventilated and dry warehouse. Protect from moisture. Handle with care when loading and unloading to prevent packaging damage