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♦ 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 ♥
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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. Shanghai Yixin Chemical Co., Ltd. builds up the reputation from strong manufacturing capacity. We have become one of the leading producer and exporter of . 2. Giving full play to the technological advantages of Yixin is conducive to the sales of sodium persulfate . 3. 'Protecting good quality' is Shanghai Yixin Chemical Co., Ltd.'s brand promise. Check it! Yixin aims to create a best atmosphere to achieve the best value for each person. Check it! Always adhering to a high degree of social responsibility and corporate philosophy of alendronate sodium is our tenet. Check it! The design of Yixin reflects a good composition of Elements of Furniture Design. It is achieved by arranging/organizing elements including Line, Forms, Color, Texture, and Pattern. Adopting stainless steel as the key materials, it is not easy to crack
During the design phase of Yixin , several factors have been taken into considerations. They include human ergonomics, potential safety hazards, durability, and functionality. It can function normally even under low temperature and high pressure
Yixin is carefully designed. Mechanical behavior such as statics, dynamics, the strength of materials, vibrations, reliability, and fatigue are taken into consideration. It has been granted with CE, RoHS, TUV and other certifications
Manufacturing for Yixin involves several aspects. They include metal cutting, forming, structural forming, surface polishing, mechanical parts manufacturing, etc. It can function normally even under low temperature and high pressure
We check the fabric of Yixin before production. It is evaluated according to weight, printing quality, defects and feel. The product is widely accepted for its abrasion resistance
The product can achieve uninterrupted operation. It promotes the working efficiency or productivity up to 99% without a low possibility of machine failure. The product has a high-hardness surface
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