Comprehensive Guide to Sodium Disilicate N-Hydrate (CAS 13870-28-5)
Table of Contents
- 1. Product Overview & Specifications
- 2. Industrial Applications
- 3. Usage Guidelines
- 4. Practical Implementation Scenarios
- 5. Client Success Stories
- 6. Request Customized Solutions
1. Product Overview & Specifications
| Parameter | Sodium Disilicate N-Hydrate | Sodium Metasilicate | Sodium Orthosilicate |
|---|---|---|---|
| CAS Number | 13870-28-5 | 6834-92-0 | 1344-09-8 |
| Chemical Formula | Na2Si2O5·nH2O | Na2SiO3 | Na4SiO4 |
| pH (1% Solution) | 12.5-13.5 | 12.0-12.8 | 13.0-13.8 |
| Solubility in Water | 220 g/L (20°C) | 500 g/L | 150 g/L |
2. Industrial Applications
2.1 Ceramic Manufacturing
Acts as flux agent to reduce melting temperature (1,300°C → 1,150°C), improving energy efficiency in kiln operations.
2.2 Detergent Formulations
Enhances cleaning power through pH buffering (optimal range 12.2-12.8) and calcium ion sequestration (200 mg CaCO3/g).
2.3 Water Treatment
Removes heavy metals (95% Pb2+ removal at 50 ppm concentration) through chelation and precipitation mechanisms.
3. Usage Guidelines
3.1 Ceramic Production Protocol
- Mix 2-5% by weight with raw materials
- Maintain 20-40°C during slurry preparation
- Fire at 1,150-1,250°C for optimal results
3.2 Detergent Compounding
- Combine 15-25% sodium disilicate with surfactants
- Maintain moisture content below 8% during mixing
- Granulate at 50-60°C for stable particle formation
4. Practical Implementation Scenarios
4.1 Wastewater Treatment Plant Optimization
Municipal plant in Essen achieved 40% reduction in sludge volume using 0.5 g/L dosage in primary treatment.
4.2 High-Strength Ceramic Development
3% addition increased MOR (Modulus of Rupture) from 35 MPa to 48 MPa in alumina ceramics.
5. Client Success Stories
5.1 ABC Ceramics Co., Ltd. (Guangdong, China)
- Challenge: 18% energy overconsumption in tunnel kilns
- Solution: 4% sodium disilicate additive in body mix
- Result: 22% fuel cost reduction, ISO 13006 compliance achieved
5.2 EuroClean Detergents GmbH (Hamburg, Germany)
- Challenge: Phosphate-free formulation performance drop
- Solution: 18% sodium disilicate replacement in dishwasher tablets
- Result: 15% better cleaning scores, ECOCERT certification obtained
6. Request Customized Solutions
Contact our technical team for application-specific formulations:
- Email: info@vivalr.com
- Mobile: (86) 15866781826
Why choose us?
- 99.9% chemical purity guaranteed
- Custom particle size distribution (10-200μm available)
- ISO 9001 & REACH compliant production



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