Menu
HEDP (Hydroxyethylidene Diphosphonic Acid) 60% is a widely used organic phosphonic acid compound in water treatment applications. It is a highly effective scale and corrosion inhibitor known for its excellent chelating properties. HEDP 60% is commonly utilized in industrial water systems, boilers, cooling towers, and other water treatment processes.
HEDP 60% works by forming stable complexes with metal ions, such as calcium, magnesium, and iron, thereby preventing their precipitation and deposition as scales. It also inhibits the corrosion of metal surfaces by forming a protective film. These properties make HEDP 60% an essential component in water treatment formulations to control scaling and corrosion issues, ensuring the efficient and reliable operation of water systems.
| Property | Specification |
|---|---|
| CAS Number | 2809-21-4 |
| Chemical Formula | C2H8O7P2 |
| Appearance | Clear to slightly yellow liquid |
| Active Ingredient Content | ≥ 60% |
| pH (1% aqueous solution) | 2.0-3.0 |
| Density (at 20°C) | 1.36-1.46 g/cm3 |
| Solubility in Water | Completely Soluble |
| Chloride Content (as Cl) | ≤ 0.1% |
| Iron Content (as Fe) | ≤ 20 ppm |
| Phosphorous Acid Content (as H3PO3) | ≤ 1.0% |
| Phosphoric Acid Content (as H3PO4) | ≤ 0.6% |