Disodium Phosphonate (CAS 13708-85-5): Comprehensive Product Guide
Table of Contents
1. Product Overview & Specifications
Disodium Phosphonate (CAS 13708-85-5), also known as Disodium Hydrogen Phosphonite, is a versatile organophosphorus compound with the chemical formula Na2HPO3.
| Parameter | Specification | Competitor A (Sodium Hypophosphite) | Competitor B (Tetrasodium EDTA) |
|---|---|---|---|
| Molecular Weight | 125.96 g/mol | 87.98 g/mol | 380.17 g/mol |
| Appearance | White crystalline powder | White granules | White powder |
| Solubility | Highly water-soluble (650 g/L at 20°C) | 1,100 g/L | 150 g/L |
| pH (1% solution) | 9.0-10.5 | 6.0-7.5 | 11.0-12.0 |
| Chelating Capacity | Superior scale inhibition | Moderate | High metal chelation |
2. Key Applications & Industrial Uses
Water Treatment Solutions
As a threshold inhibitor, prevents calcium carbonate scale formation at dosages as low as 2-10 ppm in cooling towers and boilers.
Agricultural Additives
Enhances phosphate fertilizer efficiency by 15-20% through controlled nutrient release in soil conditioning applications.
Industrial Cleaning
Removes metal ions (Fe3+, Ca2+) at 0.5-2.0% concentration in dairy equipment cleaning formulations.
3. Usage Guidelines & Best Practices
Dosage Recommendations
| Application | Concentration Range | Contact Time |
|---|---|---|
| Cooling Water Systems | 5-15 mg/L | Continuous |
| Textile Processing | 0.3-0.8% w/w | 20-40 minutes |
4. Implementation Case Studies
Case 1: Power Plant Cooling System Optimization
A 500MW coal-fired plant reduced scaling by 78% and corrosion rates by 63% after implementing our phosphonate-based treatment program.
5. Verified Client Success Stories
Client A: European Chemical Manufacturer
Achieved 22% reduction in water treatment chemical costs while maintaining NACE RP0775-91 standards.
Client B: Asian Textile Conglomerate
Improved bleaching process stability with 99.2% peroxide decomposition control using our phosphonate stabilizer.
6. Request Customized Formulation
Contact our technical team for application-specific solutions:
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