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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
Company Features 1. Shanghai Yixin Chemical Co., Ltd. has become one of the most competitive companies that boast years of experience and expertise in developing and producing . 2. Our technology takes the lead in the industry of sodium magnesium fluorosilicate . 3. Yixin will boost its global fluency in the sodium lithium magnesium fluorosilicate market. Contact us! As a manufacturer with many years of industry experience, Shanghai Yixin Chemical Co., Ltd. keeps up with market trends, not only draws on advanced production concepts at home and abroad, but also insists on using advanced technology and craftsmanship to manufacture , which makes have stable performance and excellent quality quality.
Shanghai Yixin Chemical Co., Ltd. Relying on years of accumulated production experience, strong technology and research and development strength, advanced equipment and production lines, it is more handy in the production and manufacturing of , knowing how to reasonably supervise and control each production step and process, Provide guarantee for the production of high-quality products.
Based on the goal of providing customers with high-quality products, Shanghai Yixin Chemical Co., Ltd. insists on introducing advanced production equipment to manufacture , and establishes a set of scientific and rigorous quality control system, strictly monitors and controls every link of product production, and promotes [ 10148] have excellent quality.
The company has strong comprehensive strength. It not only has established an experienced R&D and production team, but also has a number of professional automatic assembly lines. It has mastered leading production technology and exquisite manufacturing technology. The appearance and other aspects are far superior to other similar products.
The company carries out standardized production in strict accordance with national standards, has established a scientific product traceability management system and a perfect quality management system, and strives for excellence in every link from product development to delivery to ensure that the produced are of high quality and qualified product.
It has exceeded the national superior product inspection standards.
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