Comprehensive Guide to Sodium Tetraborate Pentahydrate (CAS 12179-04-3)
Table of Contents
1. Product Overview & Specifications
Sodium Tetraborate Pentahydrate (CAS 12179-04-3), also known as borax pentahydrate, is a white crystalline powder with the molecular formula Na2B4O7·5H2O and molecular weight of 291.29 g/mol. It exhibits a density of 1.815 g/cm³ and dissolves readily in water, forming weakly alkaline solutions.
Key Parameters
| Property | Value |
|---|---|
| CAS Number | 12179-04-3 |
| Purity | ≥99% |
| Thermal Stability | Decomposes above 120°C |
| pH (1% solution) | 9.2-9.4 |
2. Key Applications
- Industrial Cleaning: Acts as pH buffer and water softener in detergents.
- Agriculture: Provides boron micronutrient in fertilizer formulations.
- Metallurgy: Flux agent for metal purification and welding processes.
- Laboratory: Component in borate buffer solutions (e.g., pH 10.3).
- Glass Manufacturing: Lowers melting point and improves thermal shock resistance.
3. Comparative Analysis with Other Borates
| Parameter | Pentahydrate | Decahydrate | Anhydrous |
|---|---|---|---|
| CAS Number | 12179-04-3 | 1303-96-4 | 1330-43-4 |
| B2O3 Content | 49.8% | 36.5% | 68.9% |
| Storage Stability | Excellent | Prone to efflorescence | Hygroscopic |
4. Industry Use Cases
Case 1: Textile Processing
Used as flame retardant additive in fabric treatment, achieving 30% reduction in ignition propensity.
Case 2: Ceramic Glazes
Enhances glaze adhesion and reduces firing temperature by 15% in tile manufacturing.
5. Customer Success Stories
ABC Chemicals Ltd. (Wuhan, China)
Implemented pentahydrate in detergent production, achieving 18% cost reduction compared to decahydrate.
GreenAgro Co. (Shandong, China)
Improved crop yields by 22% through optimized boron supplementation in fertilizer blends.
6. Technical & Sales Inquiry
For product specifications sheets or bulk pricing:
Email: info@vivalr.com
Tel: (86) 15866781826
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