♦ Specification 

♦ 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.

         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.

♦ 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

♦ Application 
1. Industry , additives in cement in building .
 2. Agriculture , insecticide .

♦  Packing 
50kg /plastic bag ,or customized. 25MT/20'FCL  
 
♦  MOQ 

 1-20 ton  

♦  Storage characteristics

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

acid.

Company Information

Shanghai Yixin Chemical Co.,Ltd.

Since it is established in 1998 ,Shanghai Yixin Chemical Co.,Ltd. has become a reliable supplier in the field of chemical industry .

Currently ,overseas business of our company is composed of two parts basic inorganic raw chemicals and fine chemicals .

                                               ♥ HOT PRODUCTS ♥

                                                                 click the photo

                         Borax Decahydrate                                            Boric Acid          

                          Potassium Carbonate                                                     Barium Carbonate         

                       Copper Sulphate                                         Ammonium Sulphate 

                             Potassium Fluotitanate                                               Potassium Bicarbonate 

                 Sodium Fluorosilicate                                         Strontium Carbonate                            

We also sell inorganic chemicals like as following 

Sodium Nitrate,Sodium Carbonate,Lithium Carbonate ,

Sodium Hydroxide,Cerium Oxide ,Cobalt Oxide ,

Potassium Borofluoride ,Sodium fluoroaluminate

ZnO Oxide, Potassium fluorosilicate,Aluminium Oxide

We aim to build a worldwide business ,to provide reliable quality chemicals at competitive price for your needs .we will listen to what do you want and endeavor to achieve it .

Looking forwarding to providing you high quantity products and warmly service .

Why choose us 

• Nearly 20 years  worked for  Chemical products.
• One of the leading  Chemicals export and import  lt.,Company in Shanghai ,China.
• We have own warehouses in Shanghai port,and also work with many brother manufacturers.
• Free samples is avaliable .