EDTA Tetrasodium (EDTA-4Na) Comprehensive User Guide
Table of Contents
1. Product Specifications & Comparative Analysis
| Parameter | EDTA-4Na (CAS 64-02-8) | EDTA-4Na (CAS 13235-36-4) | EDTA-4Na (CAS 67401-50-7) |
|---|---|---|---|
| Molecular Formula | C10H12N2Na4O8 | C10H16N2Na4O10 | C10H12N2Na4O8 |
| Molecular Weight | 380.17 g/mol | 416.20 g/mol | 434.22 g/mol |
| Appearance | White crystalline powder | ||
| Solubility | Highly water-soluble (pH ~11.8 in 1% solution) | ||
| Key Differentiator | Anhydrous form | Tetrahydrate structure | Enhanced thermal stability |
2. Key Applications & Functional Properties
Core Functional Advantages:
- Heavy metal chelation capacity (Stability constant log K = 18.3 for Ca2+)
- pH buffering in alkaline environments (Effective range: pH 8-12)
- Scale inhibition efficiency (>95% in hard water systems)
Industrial Implementations:
- Water Treatment: Boiler descaling, cooling tower maintenance
- Textile Processing: Dye fixation, metal ion control
- Personal Care: Cosmetic preservation, shampoo clarity
- Pulp & Paper: Peroxide stabilization, brightness control
- Food Processing: Antioxidant synergist (regulated applications)
3. Industrial Use Cases
Case A: Textile Dyeing Optimization
Implementation of 0.5-1.2% EDTA-4Na in reactive dye baths achieves:
- 25% reduction in dye aggregation
- 40% improvement in color fastness
- 15% decrease in water consumption
Case B: Industrial Cleaning Formulations
3-5% concentration in alkaline cleaners demonstrates:
- 80% scale dissolution within 30 minutes
- 60% reduction in surfactant dosage
- Compliance with EPA wastewater regulations
4. Client Success Stories
Client 1: European Detergent Manufacturer
- Challenge: Phosphate replacement in eco-detergents
- Solution: 8% EDTA-4Na + zeolite matrix
- Outcome: 30% improvement in cleaning efficiency
Client 2: Asian Petrochemical Plant
- Challenge: Pipeline corrosion control
- Solution: 500 ppm EDTA-4Na in cooling systems
- Outcome: 90% reduction in iron deposition
5. Technical Inquiry & Support
Request customized technical specifications or application guidance:
- Email: info@vivalr.com
- Tel: (86) 15866781826
Our chemists provide:
- Formulation optimization services
- Regulatory compliance analysis
- Batch-specific technical data sheets



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