Colemanite (CAS 1318-33-8): Comprehensive User Guide for Industrial Applications
Table of Contents
1. Product Overview & Technical Specifications
Colemanite (Ca₂B₆O₁₁·5H₂O) is a hydrated calcium borate mineral with exceptional thermal stability and boron content. Key parameters:
| Parameter | Specification |
|---|---|
| CAS Number | 1318-33-8 |
| Boron Content | 50-52% (B₂O₃ equivalent) |
| Mohs Hardness | 4-4.5 |
| Melting Point | 986°C |
2. Key Applications of Colemanite
2.1 Glass Manufacturing
Reduces thermal expansion coefficient in borosilicate glass (CTE < 5 × 10⁻⁶/°C)
2.2 Ceramic Production
Lowers glaze melting temperature by 150-200°C compared to feldspar
3. Performance Comparison Analysis
| Property | Colemanite | Ulexite | Boric Acid |
|---|---|---|---|
| B₂O₃ Content | 50-52% | 43-45% | 56% |
| Water Solubility | Low (0.3g/100ml) | High (8g/100ml) | Complete |
4. Industry Use Cases
4.1 Flame Retardant Formulations
Enhances UL94 V-0 compliance in PVC compounds at 15-20% loading
5. Client Success Stories
Case 1: European Glass Manufacturer
Challenge: Achieve CTE < 3.5 × 10⁻⁶/°C for laboratory glassware
Solution: 18% Colemanite substitution reduced annealing time by 35%
Case 2: Asian Ceramic Producer
Implemented Colemanite-based fluxes to reduce kiln energy consumption by 22%
6. Contact for Technical Consultation
Request customized material specifications or application testing:
Email: info@vivalr.com
Phone: (86) 15866781826
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