

Packaging & Delivery
♦ 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% |
♦ 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




| Business TypeCountry / Region | Trading CompanyShanghai, China | Main ProductsTotal Employees | barium carbonate, potassium carbonate, Potassium nitrate, mica, KBF411 - 50 People |
|---|---|---|---|
|
Total Annual Revenue Company Features 1. Established years ago, Shanghai Yixin Chemical Co., Ltd. has become a globally-competitive manufacturer supporting the market with high-quality . Our company has world-class manufacturing facilities. By introducing cutting-edge production engineering and quality control technologies to instrument production, we ensure a quality level held in high esteem throughout the world. 2. We have an excellent design team. Blending rich experience and extraordinary creativity, these designers can think out of the box to design fascinating and award-winning products for customers. 3. We sell products all over the world. Our export destinations include the United States, Canada, Central and South America, the United Kingdom, Spain, Africa, Russia, Australia, and Southeast Asia. We have won the trust and support of customers around the world. We are always committed to serving our customers with the best sodium fluoride teeth and thoughtful service. Inquire! Yixin shapes up under the integration of several theories. The knowledge of thermodynamics, kinetics, and reaction engineering in metallurgical are applied in the manufacturing process.
High-tech processing equipment is used in the production of Yixin . It is done under the detritus equipment, grinding equipment, as well as sand-making equipment, which can guarantee high purity and fineness.
Yixin is under the real-time control of the R&D team. The team will carry out a routine sampling and analysis of the raw materials so as to acquire information necessary for the economic appraisal of ores and concentrates.
The raw materials of Yixin are treated with several procedures. Materials enrichment, refining, and smelt process will be conducted to make the materials into a product with high purity.
Yixin is an outcome of four applicable expertise. Specific knowledge in geology, chemical analysis, and high purity process are used to convert raw materials into high purity and high-value final product.
Strong corrosion resistance, high temperature resistance effect, strong bearing capacity, durable, long service life.
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