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product

Sodium fluorosilicate(sodium silicofiuoride)
[Molecular Formula]: Na2SiF6
[Molecular Weight]: 188.06
[Property]: Colorless hexagonal crystal, odorless, flavorless, relative density:2.679; soluble in aether, insoluble in alcohol.
[Specification]: Professional standard ZB G12017-89
Index name
Index

Top grade
First grade
Second grade
Content of sodium fluorosilicate (base on dry basis)
99.0 %min.
98.5 %min.
97.0 %min.
Iron (Fe)
0.02 %max.
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Content of free acid (base on HCl )
0.1 %max.
0.15 %max.
0.20 %max.
Content of heavy metal(base on Pb)
0.02 %max.
0.05 %max.
0.05 %max.
Content of insoluble substance in water
0.40 %max.
0.50 %max.
1.00 %max.
Drying loss at 105oC
0.3 %max.
0.4 %max.
0.6 %max.
Fineness passed 250/¦Ìm test sieve
90 %min.
90 %min.
90 %min.
Appearance  
White crystal
[Used]: Preservatives in wood industry, hygroscopic agent in acid-proof cement, glass opaliger, pesticide in agricultural industry, coagulator in latex products, additives in zinc plating, nickel and iron, plastic filling. Produce artificial cryolite and sodium fluoride.
[Note] : Technical index of iron and heavy metal are guarantee item or on the clients' requirements.
[Packing]: 50kg per bag.

Zinc fluorosilicate (zinc silicofluoride)
[Molecular formula]: ZnSiF6.6H2O
[Molecular Weight]: 315.54
[Property] : Colorless hexagonal system prismatic crystal or white crystalline powder. Relative density : 2.014. Easily soluble in water and inorganic acid, insoluble in ethanol. Decomposed into silicon tetrafluoride, water and silicon fluoride when heated to 100oC.
[Product quality] : Company standard
Index name
Index
Index name
Index
Zinc fluorosilicate (hexahydrate)
98% min.
 Zinc sulfate ZnSO4.7H2O
0.5 %max.
Insoluble substance in water ZnF6 , SiO2 etc.
0.25 %max.
 Water content  
0.6 %max.
[Used]: Preservative in wood industry, hardener in concrete, intensifier of calcined gypsum, treating compound, moth proofing agent, catalyst of polyester fibre. Also used in preparing electrobath.
[Packing]: 50kg per bag.

 

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