Mudanjiang Fengda Chemicals Import And Export Corporation
Main products:Oxalic Acid,Formic Acid,Serise of Humic Acid,Raw materials for the chemical industry and pharma,and farm produces
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  • Contact Person : Ms. Jie Qian
  • Company Name : Mudanjiang Fengda Chemicals Import And Export Corporation
  • Tel : 86-453-6228414
  • Fax : 86-453-6223551
  • Address : Heilongjiang,Mudanjiang,167 Aimin Street, Xian District, Mudanjiang City, Heilongjiang Province. China
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  • Zip : 157000

sodium fluorosilicate

sodium fluorosilicate
Product Detailed
Molecular Formula: Na2SiF6 Molecular Weight: 188.06 CAS No.:16893-85-9

Molecular Formula: Na2SiF6                

Molecular Weight: 188.06

CAS No.:16893-85-9

U.N-NO 2674    Class 6.1          H.S-NO 2826.2000

Property: It is colorless hexagonal, odorless and tasteless crystal with relative density 2.679. It is hygroscopic. It is soluble in ether, insoluble in alcohol. The solubility in acid is greater than in water. It decomposes in alkaline solution and produces sodium fluoride and silicon dioxide. It is decomposed to sodium fluoride and silicon tetrafluoride by heating to 300°C. It is noxious!

Specification:

Sodium fluorosilicate

 (based on dry)

99.0%min

98.5%min

97.0%min

Iron(Fe)

0.02%max

 

 

Free acid(based on HCI)

0.1%max

0.15%max

0.05%max

Water-insoluble matter

0.40%max

0.50%max

1.00%max

Loss on Drying at 105°C

0.3%max

0.4%max

0.6%max

Fineness

(through 250μm test bolter)

90%min

90%min

90%min

Heave metal(based on Pb)

0.02%max

0.05%max

0.055max

Packing:Net each in 25kg plastic woven bag, lined with PE bag.

Usage: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.

sodium fluorosilicate

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