UNICALE HD (HYDROXYETHYLENE DIPHOSPHONIC ACID - HEDP)
GENERAL INFORMATION
UNICALE HD is an organophosphonic acid widely used in industrial water treatment and detergent formulations due to its excellent chelating and anti-scaling properties. It offers high thermal and hydrolytic stability, making it suitable for high-temperature systems such as boilers and cooling towers.
PRODUCT DESCRIPTION
| PROPERTY | VALUE |
|---|---|
| Product Name | UNICALE HD (Hydroxyethylene Diphosphonic Acid - HEDP) |
| Chemical Name | Hydroxyethylidene Diphosphonic Acid |
| CAS Number | 2809-21-4 |
| Molecular Formula | C2H8O7P2 |
| Appearance | Clear, colorless to pale yellow liquid |
| Purity | ≥ 60% active acid |
| Solubility | Completely soluble in water |
| pH (1% solution) | 2.0 – 3.0 |
APPLICATION AREAS
| SECTOR | APPLICATIONS |
| Water Treatment | Scale inhibition in boilers, cooling towers |
| Detergents & Cleaners | Chelating agent, anti-scaling component |
| Oilfield Chemicals | Scale and corrosion control in oil extraction |
| Textile & Paper | Water conditioning, scale dispersing |
TECHNICAL SPECIFICATIONS
Active Content: ≥ 60%
Density (@20°C): 1.33 – 1.43 g/cm³
Iron Content: ≤ 20 ppm
Phosphorous Content (as P): 28 – 30%
ADVANTAGES
High-performance scale and corrosion inhibition
Excellent thermal and chemical stability
Compatible with various water treatment chemicals
Low toxicity and environmentally acceptable
PACKAGING / STORAGE
Packaging Options: 30 kg, 250 kg drums or 1250 kg IBCs
Storage Conditions: Store in a cool, dry, and ventilated area
Shelf Life: 12 months when stored in original, unopened container
SAFETY / HANDLING
Use appropriate protective equipment (gloves, goggles)
Avoid inhalation and contact with skin or eyes
Refer to SDS for detailed safety measures
.png)
.png)
.png)