CAS · 2809-21-4
Product Overview
1-Hydroxyethylidene-1,1-diphosphonic acid is a high-purity water-treatments supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance (visual) | White crystalline powder |
|---|---|
| Active content (as HEDP. H₂O) (%) | 98.0 min. |
| Active content (as HEDP) (%) | 90.0 min. |
| pH (1% solution) @ 20 °C | 2.0 max. |
| Iron content (Fe ppm) | 35.0 max. |
| Phosphorous acid as PO₃³⁻ (%) | 2.5 max. |
| Phosphoric acid as PO₄³⁻ (%) | 0.7 max. |
| Chloride as Cl⁻ (%w/w) | 1.0 max. |
Applications
Water Treatment Industry
1-Hydroxyethylidene-1,1-diphosphonic acid丨2809-21-4 is widely used as a scale and corrosion inhibitor in industrial water treatment systems, including cooling towers, boilers, and desalination plants. It helps prevent the formation of scale deposits and corrosion on metal surfaces.
Detergent and Cleaning Products
It is used in household and industrial detergents to prevent water hardness ions (such as calcium and magnesium) from interfering with cleaning efficiency. It enhances the effectiveness of soaps and detergents, improving stain and dirt removal.
Metal Surface Treatment
HEDP is employed in metal cleaning and treatment processes, including electroplating and metal pickling. It prevents oxidation and corrosion, ensuring longer-lasting protection for metal surfaces.
Textile and Dyeing Industry
In the textile industry, HEDP is used as a stabilizer in bleaching processes. It prevents metal ions from affecting dyeing and bleaching performance, leading to more uniform and high-quality fabric finishes.
Oil and Gas Industry
HEDP is used in oilfield applications, such as enhanced oil recovery and drilling fluids, to prevent scale formation in pipelines and equipment. It enhances the efficiency and longevity of extraction systems.
Pharmaceutical and Cosmetic Applications
It is sometimes used as a stabilizer in pharmaceutical formulations and cosmetic products, where it helps maintain product integrity by preventing unwanted chemical reactions.
Benefits
Strong Scale and Corrosion Inhibition
1-Hydroxyethylidene-1,1-diphosphonic acid丨2809-21-4 effectively chelates metal ions, preventing the formation of scale and rust, which prolongs the lifespan of industrial equipment and water systems.
Chemical Stability and High-Temperature Resistance
It remains stable under high temperatures and extreme pH conditions, making it ideal for use in harsh industrial environments.
Biodegradability and Environmental Safety
Compared to other phosphonates, HEDP is more biodegradable and has a lower environmental impact, making it a preferred choice in eco-friendly formulations.
Multi-Purpose Applications
Its versatility across different industries, including water treatment, detergents, metal treatment, and textiles, makes it a valuable additive in multiple sectors.
Conclusion
1-Hydroxyethylidene-1,1-diphosphonic acid丨2809-21-4 is a highly effective scale inhibitor, corrosion preventer, and stabilizer widely used in water treatment, cleaning products, metal processing, and industrial applications. Its strong chelating properties, chemical stability, and environmental benefits make it an essential compound for maintaining efficiency and longevity in various systems.
Previous
Next