Trisodium Ethylenediamine Disuccinate (CAS 20846-91-7): Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Trisodium Ethylenediamine Disuccinate (TE-DS) (CAS 20846-91-7) is a biodegradable chelating agent with superior metal ion sequestration capabilities compared to traditional EDTA alternatives.
Technical Parameters:
| Parameter | Specification |
|---|---|
| Chemical Name | Trisodium Ethylenediamine Disuccinate |
| CAS Number | 20846-91-7 |
| Molecular Formula | C10H13N2Na3O8 |
| Appearance | White crystalline powder |
| Solubility | ≥98% in water (20°C) |
| pH (1% solution) | 10.5-11.5 |
| Chelation Value | ≥350 mg CaCO3/g |
Competitive Comparison:
| Feature | TE-DS | EDTA | NTA |
|---|---|---|---|
| Biodegradability | >90% in 28 days | <30% | 40-50% |
| Heavy Metal Binding | Superior at pH 3-11 | Optimal at pH 8-10 | Limited range |
| Eco-Toxicity | Non-toxic | Aquatic toxicity | Moderate risk |
2. Key Applications & Use Cases
Core Industrial Functions:
- Detergent Formulations: Calcium/magnesium ion neutralization in phosphate-free cleaners
- Water Treatment: Scale inhibition in cooling towers (5-15% efficiency improvement)
- Agriculture: Microelement fertilizer stabilizer (extends nutrient availability by 30-45 days)
- Pulp Bleaching: H2O2 stabilization agent (reduces peroxide consumption by 18-22%)
3. Industry-Specific Implementation Examples
Case A: Municipal Water Treatment
Challenge: Hard water scaling (450 ppm CaCO3) reducing heat transfer efficiency
Solution: 0.5% TE-DS injection in cooling system
Outcome: 62% scale reduction, $18k/annual energy savings
Case B: Bio-Detergent Production
Challenge: EU Regulation (EC) No 648/2004 compliance for aquatic toxicity
Solution: EDTA replacement with TE-DS in enzyme stabilizers
Outcome: 100% regulatory compliance, 8% cost reduction
4. Verified Customer Success Stories
Client 1: ABC Chemical Co. (Germany)
Application: Industrial cleaning formulations
Results: 35% faster dissolution rate, 12% material cost saving
Client 2: EcoClean Solutions (USA)
Application: Phosphate-free dishwasher tablets
Results: 22% improvement in rinse-cycle performance
Client 3: GreenAgro Tech (Netherlands)
Application: Micronutrient fertilizers
Results: 40% longer soil retention, 15% yield increase
5. Technical Consultation & Quotation
Request customized solutions for your specific application:
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Phone: (86) 15866781826
Our technical team provides:
- Material compatibility testing
- Regulatory compliance analysis
- Dosage optimization studies
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