sodium silicofluoride
synonym: sodium fluorosilicate
formula: Na2 SiF6
m.w.: 188.06
cas no.: 16893-85-9
description: white crystal or white crystalline powder with a specific gravity of 2.68. slightly soluble in water. insoluble in alcohols, corrosive. decomposes into sodium fluoride and silicon tetrafluoride on heating.
specifications:
Na2 SiF 6 content: |
99%min. |
Free acid: |
0.1%max. |
Water insolubles: |
0.4%max. |
Moisture: |
0.3%max. |
Lead (Pb): |
0.02%max. |
Fe: |
0.02%max |
Fineness: |
pass through 250-mesh sieve 90%min. |
uses: chiefly used as additive in manufacture of acid-proof paste, insecticides, anticorrosion agent for wood, chemical reagent and as a protecting agent in the casting of light metals,
packing: in plastic bags protected with plastic woven bags, 50kgs net each. |
