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Just to create the best lamps.
Just to create the best lamps.
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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. is committed to the development, manufacture, sales and service of sodium propionate . We have boasted a dedicated sales & marketing team. They have good communication and excellent project coordination skills, which allows them to service customers in a satisfactory manner. 2. It is such a team of R&D professionals that make our company unique. They are always connected to the outside world, get insight into market trends, and understand the needs and concerns of customers, so as to come up with solutions that help solve clients' needs. 3. Our factory is located in a favorable geographic position. This strategic location helps us to connect businesses competently along with quality products that meet customers’ requirements. Shanghai Yixin Chemical Co., Ltd. is committed to 'ensuring that every customer in the world has high-quality '.
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