1-Hydroxyethanediphosphonic Acid Sodium Salt (CAS 29329-71-3): Comprehensive User Guide
Table of Contents
1. Product Overview & Technical Specifications
1-Hydroxyethanediphosphonic Acid Sodium Salt (CAS 29329-71-3) is a high-performance phosphonic acid derivative widely used as a scale and corrosion inhibitor. Key parameters include:
| Parameter | Specification | Comparison with HEDP |
|---|---|---|
| Chemical Formula | C2H6O7P2Na2 | Higher solubility in alkaline conditions |
| Molecular Weight | 294.03 g/mol | Lower viscosity at high concentrations |
| Appearance | Colorless to pale yellow liquid | Improved thermal stability (up to 200°C) |
| pH Range | 2.0-12.0 | Wider effective pH range vs. ATMP inhibitors |
2. Applications & Industry Uses
Primary Functions:
- Scale inhibition in cooling water systems
- Corrosion control in industrial boilers
- Chelating agent for metal ions (Fe3+, Ca2+)
- Stabilizer in peroxide bleaching processes
Industry-Specific Implementations:
| Industry | Concentration Range | Performance Benefit |
|---|---|---|
| Power Generation | 5-50 ppm | Reduces calcium sulfate scaling by 92% |
| Oil & Gas | 10-100 ppm | Enhances pipeline protection at >90°C |
3. Operational Guidelines
Dosage Recommendations:
| Water Hardness (ppm) | Recommended Dosage |
|---|---|
| < 200 | 10-20 mg/L |
| 200-500 | 20-40 mg/L |
Compatibility Notes:
- Maintain system pH between 7.5-9.5 for optimal performance
- Compatible with chlorine-based biocides at < 2 mg/L
4. Implementation Case Studies
Case 1: Power Plant Cooling System
Challenge: Recurrent calcium carbonate scaling in 500 m3/hr cooling tower
Solution: 25 ppm continuous dosage + monthly shock treatment
Result: 18-month scale-free operation, ROI achieved in 6 months
5. Client Success Stories
Client A: Petrochemical Refinery
Location: Zhejiang, China
Implementation: Pipeline corrosion control in crude distillation units
Outcome: Corrosion rate reduced from 0.25 mm/yr to 0.03 mm/yr
Client B: Textile Manufacturer
Location: Gujarat, India
Implementation: Hydrogen peroxide stabilization in bleaching baths
Outcome: 40% reduction in peroxide consumption
6. Request Customized Solutions
For technical specifications sheets or application consultations:
Email: info@vivalr.com
Tel: (86) 15866781826
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