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99% Disodium Hexafluorosilicate , Odorless Sodium Silicofluoride Suppliers

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99% Disodium Hexafluorosilicate , Odorless Sodium Silicofluoride Suppliers

99% Disodium Hexafluorosilicate , Odorless Sodium Silicofluoride Suppliers
99% Disodium Hexafluorosilicate , Odorless Sodium Silicofluoride Suppliers 99% Disodium Hexafluorosilicate , Odorless Sodium Silicofluoride Suppliers 99% Disodium Hexafluorosilicate , Odorless Sodium Silicofluoride Suppliers

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Product Details:
Place of Origin: CHINA
Brand Name: YIXIN
Certification: ISO9001
Model Number: YXF-005
Payment & Shipping Terms:
Minimum Order Quantity: 1-25ton
Price: usd550-650/ton
Packaging Details: 50kg/bag
Delivery Time: 3-15days after received deposit
Payment Terms: L/C, T/T, Western Union,
Supply Ability: 1000 ton per month

99% Disodium Hexafluorosilicate , Odorless Sodium Silicofluoride Suppliers

Description
Other Name: Disodium Hexafluorosilicate Odor: Odorless
UN Number: 2674 CAS NO: 16893-85-9
Class Of Risk: 6.1 EINECS: 240-934-8
High Light:

sodium fluorosilicate

,

sodium hexafluorosilicate

 99% salufer powder CAS NO 16893-85-9 can make cement additives in industry building and insecticide in agriculture​

 
►Description 

      Sodium fluorosilicate is the byproduct in the production of calcium phosphate or

 

the production of fluoride salt in aluminum factory.

     

      It generally appears as a white crystalline powder with low solubility in water

 

(being 1% or less at room temperature), and the water solubility increases slightly

 

with increasing temperature.

     

      The aqueous solution of sodium fluorosilicate is acidic (pH3). This is due to that

 

its hydrolysis product contains hydrofluoric acid.

     

         Reduction of the acidicity of the solution facilitates the hydrolysis of sodium

 

fluorosilicate.

     

         When pH is lower than 3.5-3.55, the hydrolysis reaction is stabilized. When

 

the pH is equal to 4, the hydrolysis reaction rate is significant. When the pH value is

 

equal to 8-8.5, the sodium fluorosilicate can be completely hydrolyzed to exhibit as

 

silica gel and precipitated out.

     

            Therefore, when sodium fluorosilicate is added to the water glass, in addition

 

to hardening effect of precipitation of silicon dioxide gel caused by the neutralization

 

of the sodium hydroxide in the solution of water glass, the sodium fluorosilicate

 

itself is also a source of silica gel.
Specification 

 

   Na2Si6                Item                 Specification
Na2SiF6 ≥99%
Fe ≤0.02%
Loss of Weight on drying at 105°C ≤0.40%
Insoluble in Water ≤0.50%
Free Acid(HCL) ≤0.15%
Heavy Metal(Pb) ≤0.05%
 

 ►Eference quality standards

 
105 ℃ Loss of weight upon drying% 0.17%
 
Sodium fluorosilicate (based on dry mass) 99.50
 
Free acid (calculated based on HCL) 0.0075
 
Water insoluble matter 0.12%
 
Heavy metals (Pb) content% <0.02

Chemical Properties

    It appears as colorless hexagonal crystals. It is odorless and tasteless. It has

 

hygroscopicity. It can be dissolved in a solvent such as ethyl ether but insoluble in

 

alcohol with its solubility in acid is being greater than in the water.

Application 

 
 
1. Industry :      additives in cement in building .
 2. Agriculture : insecticide .

Packing 

 
50kg /plastic bag ,or customized 
 
MOQ 

 
 1-20 ton  
 
►Storage characteristics

 


Treasury: ventilation, low-temperature and drying; store it separately from food and

acid.

Contact Details
Shanghai Yixin Chemical Co., Ltd.

Contact Person: anny

Tel: +8613391072385

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