Borax Pentahydrate For Glass Wool HS Code 284019 White Granular Na2B4O7.5H2O For Borosilicate Glass
Brand Name:ETiMADEN
Certification:SGS
Model Number:ETiBOR-68
Minimum Order Quantity:25kgs
Delivery Time:within 7 days
Payment Terms:L/C, T/T
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Borax Pentahydrate Used for Glass Wool, HS Code 284019 White Granular Na2B4O7.5H2O for Borosilicate Glass
1. Borax Pentahydrate Introduction
Borax pentahydrate, also known as disodium tetraborate pentahydrate, is a crystalline form of borax composed of sodium, boron, oxygen, and water molecules. It is chemical formula is Na2B4O7.5H2O. Borax pentahydrate boron content is about 15% and boron oxide content is more than 48%. Borax Pentahydrate is commonly used in various industrial and household applications due to its unique properties. It is known for its role as a cleaning agent, as a flux in welding, as a buffering agent in chemical laboratories, and even as a component in some cosmetics and pharmaceuticals. Its ability to dissolve in water and form alkaline solutions makes it versatile for a range of uses. With its distinctive properties and wide-ranging applications, borax pentahydrate plays a significant role in numerous industries and daily activities.
| Product Name | Borax Pentahydrate Used for Glass Wool |
| Cas No. | 12179-04-3 |
| Einecs No | 215-540-4 |
| Formula | Na2B4O. 5H2O |
| M.W | 291.35 |
| Density | 1.815g/cm3 |
| HS Code | 2840190000 |
| Package | 25kgs / 1200KGS PP Bags |
| Application | borosilicate glass/glass wool |
2. Borax Pentahydrate Specifications
| Component | Content |
| B2O3 | 48.00-49.35% |
| Na2B4O7.5H2O | 100.42-103.24% |
| Na2O | 21.37-21.95% |
| SO4 | 135ppm max |
| Cl | 70ppm max |
| Fe | 3ppm max |
| Insolubles in water | 150ppm max |
| Particle size specifications | |
| Size | Content |
| +1.180mm | 4.00% max |
| -0.075mm | 5.00% max |
3. Borax Pentahydrate for Glass Wool and Borosilicate Glass
Borax pentahydrate is a source of boric oxide (B2O3) for many products, including glass wool, textile fiber glass, and borosilicate glasses. Borax pentahydrate also provides a source of sodium and is used in combination with boric acid when it is necessary to control the sodium to boron ratio in glass.
Borax pentahydrate controls glassmaking melt and influences the final product properties. In fiber glass, borax pentahydrate assists fiberizing and gives durability in use while decreasing thermal emissivity. In borosilicate glass, borax pentahydrate gives a low coefficient of thermal expansion (thus providing resistance to heat and thermal shock) and improves chemical durability.
In the realm of glass making, borax pentahydrate serves as a crucial ingredient due to its unique properties that enhance the manufacturing process and the quality of the final product. Here are some key ways in which borax pentahydrate is utilized in glass making:
1. Improves Glass Strength: Borax pentahydrate enhances the strength and durability of glass. It helps to decrease the thermal expansion of the glass, reducing the likelihood of breakage or cracking due to temperature changes.
2. Colorant: Borax pentahydrate can also be used as a colorant in glass production. By adding certain metallic oxides along with borax pentahydrate, glassmakers can achieve a variety of colored glass products.
3. Corrosion Resistance: Borax pentahydrate contributes to the corrosion resistance of glass. This is particularly important in the production of laboratory glassware and certain types of specialty glass that need to withstand harsh chemical environments.
4. Promotes Homogeneity: When added to the glass batch, borax pentahydrate helps in achieving a more homogeneous mixture, ensuring uniformity in the glass composition and properties.
Overall, borax pentahydrate plays a vital role in glass making by facilitating the melting process, improving glass quality, enhancing specific properties, and enabling the production of a wide range of glass products with varying characteristics and applications.
4. Borax Pentahydrate Pictures
5. Packing and Shipping
Borax Pentahydrate For Glass Wool HS Code 284019 White Granular Na2B4O7.5H2O For Borosilicate Glass
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