Borax for Refractory Materials, White Granular Na2B4O7.10H2O Sodium Tetraborate Decahydrate for Refractories
1. Borax Decahydrate Introduction
Borax decahydrate, also known as sodium borate decahydrate or simply borax, is a naturally occurring mineral compound that is often used in various household and industrial applications. It is composed of sodium, boron, oxygen, and water molecules.Borax decahydrate is a chemical substance with the molecular formula Na2B4O7 · 10H2O. It is a semi transparent colorless crystal or crystalline white powder. Borax decahydrate has no odor and a salty taste. When heated to 350-400 ℃, borax decahydrate will lose all its crystalline water and become anhydrous borax. Borax decahydrate is soluble in water and also in glycerol, but insoluble in alcohol. Its aqueous solution is weakly alkaline and appears colorless glassy when melted.
White Granular Na2B4O7.10H2O Sodium Tetraborate Decahydrate for Refractories
| Product Name | Borax Decahydrate for Metallurgical Fluxes |
| Chemical Formula | Na2B4O7.10H2O |
| Other Name | disodium tetraborate decahydrate/ sodium tetraborate decahydrate |
| CAS No. | 1303-96-4 |
| EINECS NO. | 215-540-4 |
| M.W. | 381.87 |
| Boiling Point | 320°C |
| Melting Point | 75 °C |
| HS Code | 2840190000 |
| Appearance | White Granular |
| Application | Metallurgical fluxes, gold mining |
2. Borax Decahydrate Specifications
| Purity 99.9% White Granular Sodium Tetraborate Decahydrate Specifications |
| Component | Content |
| B2O3 | 36.47-38.50% |
| Na2B4O7.10H2O | 99.90-105.45% |
| Na2O | 16.24-17.14% |
| SO4 | 135 ppm max |
| Cl | 70 ppm max |
| Fe | 10 ppm max |
| Size |
| +1.180mm | 4.00% max |
| -0.063mm | 4.00% max |
3. Borax Decahydrate for Refractory Materials/Refractories
Borax decahydrate compounds are used as stabilizers and bonding agents in specialty abrasives. It gives an intermediate-temperature glassy bond prior to ceramic bond establishment, at which point the borate compound is frequently volatilized from the system.
In refractory applications, borax decahydrate, also known as sodium borate decahydrate or simply borax, can be utilized as a fluxing agent to improve the properties of refractory materials. Here are a few ways in which borax decahydrate is used in refractories:
1.Fluxing Agent: Borax decahydrate acts as a flux in refractory materials, lowering the melting point of the raw materials and facilitating the formation of a glassy phase during firing. This helps to bond the refractory particles together and improve the overall strength and integrity of the material.
2.Binder: Borax can also serve as a binder in refractories, helping to agglomerate the refractory particles and enhance the green strength of the material before firing. This can contribute to better handling properties and reduce the risk of cracking or deformation during processing.
3.Corrosion Resistance: Borax decahydrate can improve the resistance of refractory materials to chemical attack and corrosion by forming stable compounds with certain impurities or by creating a protective glassy phase on the surface of the refractory.
4. Borax Decahydrate Product Pictures
5. Packing and Shipping for Borax Decahydrate
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Borax For Refractory Materials White Granular Na2B4O7.10H2O Sodium Tetraborate Decahydrate Images
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