Sichuan Hongjian Xinyi Technology Co., Ltd.
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Industrial-grade borax (Na₂B₄O₇·10H₂O) is a white crystalline powder with ≥99% purity and ≥11.3% boron content. Refined from high-quality boron ore, it offers excellent solubility and stability for glass manufacturing, ceramic glazes, metal welding, and corrosion protection.
| Parameter | Value |
|---|---|
| Chemical Name | Sodium Tetraborate Decahydrate |
| CAS No. | 1303-96-4 |
| Molecular Formula | Na₂B₄O₇·10H₂O |
| Molecular Weight | 381.37 |
| Purity | ≥99% |
| Boron Content (B₂O₃) | ≥36.5% |
| Water Insolubles | ≤0.05% |
| pH (1% Solution) | 9.0-9.5 |
| Solubility (20°C Water) | 60g/L |
✅ Industrial Grade: Complies with HG/T 2957-2010
✅ Low Heavy Metal: Pb ≤10ppm, As ≤5ppm
✅ Custom Particle Size: 20-100 mesh available
25kg/bag: Moisture-proof woven bag (PE liner)
50kg/drum: Sealed plastic drum (anti-caking)
✔ High-Purity Boron: Consistent B₂O₃ content, minimal impurities
✔ Versatile: Stable in high-temperature/chemical processes
✔ Eco-Friendly: RoHS compliant, no hazardous byproducts
✔ Global Certifications: REACH registered, MSDS/COA provided
Glass Industry
Enhances thermal resistance and clarity
Used in optical glass and heat-resistant ware
Ceramic Glazes
Lowers melting point, improves gloss
Prevents glaze cracking
Metalworking
Welding flux (removes oxides)
Anti-corrosion surface treatment
Other Uses
Wood/textile preservative
Flame retardant additive
Laboratory reagent
⚠ Precautions:
Avoid dust inhalation; wear masks and gloves
Keep away from acids to prevent reactions
Why Choose Us?
✅ High-purity products, in compliance with international standards
✅ 30+ Years Chemical Manufacturing Experience
✅ Strict QC with Batch Traceability
✅ Global logistics, supporting sea and air transportation
✅ Technical support, providing customized solutions
✅ Factory direct supply, with strong price competitiveness