White Powder Sodium Fluorosilicate Aluminum Additive 99% Na2SiF6 For Metal Surface Treatment
Brand Name:YIXIN
Model Number:YX-FGSN
Minimum Order Quantity:20 tons
Delivery Time:within 15 days after receiving full payment
Payment Terms:L/C, T/T
Place of Origin:CHINA
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White Powder Sodium Fluorosilicate Used as Aluminum Additive, 99% Na2SiF6 Used for Metal Surface Treatment
1. Sodium Fluorosilicate Introduction
Sodium fluorosilicate, also known as sodium silicofluoride, is a
chemical compound with the formula Na2SiF6. This odorless, white
crystalline powder is commonly used in various industrial
applications such as water fluoridation, metal surface treatment,
and glass etching. It is a source of fluoride ions and is valued
for its ability to resist acidic conditions. Sodium fluorosilicate
plays a crucial role in enhancing the durability and strength of
materials where it is applied.
| Product Name | 99% Na2SiF6 Used for Metal Surface Treatment |
| CAS No | 16893-85-9 |
| EINECS No | 240-934-8 |
| Purity | 99%min |
| Package | 25kgs, 1000kgs, 1250kgs |
| HS Code | 2826901000 |
| Molecular Weight | 188.055 |
| Chemical Formula | Na2SiF6 |
| UN No | 2674 |
| Application | metal surface treatment, aluminum additive |
| Other Name | sodium hexafluorosilicate |
2. Sodium Fluorosilicate Specifications
| Item | Standard | Result |
| Sodium Silicofluoride | 99%min | 99.20% |
| Phosphorus Pentoxide | 0.01%max | 0.0030% |
| Loss of weight on drying at 105℃ | 0.30%max | 0.22% |
| Free acid(as HCl) | 0.10%max | 0.07% |
| Chlorides(as Cl-) | 0.20%max | 0.08% |
| Sulphate(SO42-) | 0.25%max | 0.17% |
| Iron(Fe) | 0.02%max | 0.0015% |
| Water-insoluble matter | 0.5%max | 0.11% |
| Heavy metal (as Pb) | 0.01%max | 0.01%max |
3. Sodium Fluorosilicate Applications
The main application areas of sodium fluorosilicate include wood preservation, concrete admixtures, ceramic glazes, and glass manufacturing. In wood preservation, sodium fluorosilicate can react with the moisture in the wood to generate fluoride with anti-corrosion properties, thereby protecting the wood from pests and mold. In concrete admixtures, it can improve the fire resistance and water resistance of concrete. In addition, sodium fluorosilicate is also used in the preparation of ceramic glazes, which can improve the smoothness and hardness of the glaze surface. In glass manufacturing, it helps to improve the transparency and strength of the glass.
Sodium fluorosilicate has various functions in metal surface treatment:
3.1 Remove oxide layer and dirt
Sodium fluorosilicate can effectively remove oxide layers and dirt
on metal surfaces during surface treatment. During metal processing
and storage, metal surfaces are prone to forming oxide layers or
being contaminated with various dirt, which can affect the quality
of the metal surface. Sodium fluorosilicate, as a metal surface
treatment agent, can effectively remove these oxide layers and
dirt, thereby ensuring the cleanliness and smoothness of the metal
surface.
3.2 Improve durability and wear resistance
Sodium fluorosilicate can enhance the durability and wear
resistance of metal surfaces. In the field of metal surface
treatment, the application of sodium fluorosilicate can
significantly improve the durability and wear resistance of metal
surfaces, and extend the service life of metals.
3.3 As an etchant and surface conditioner
Sodium fluorosilicate can also be used as an etchant and surface
conditioner to further improve the quality of metal surfaces.
Through etching treatment, small irregularities on the metal
surface can be removed, making it smoother and improving the
corrosion resistance and overall quality of the metal.
4. Sodium Fluorosilicate Pictures and Packages
5. Bill of Lading for Sodium Fluorosilicate
White Powder Sodium Fluorosilicate Aluminum Additive 99% Na2SiF6 For Metal Surface Treatment
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