| Customization: | Available |
|---|---|
| CAS No.: | CAS 2809-21-4 |
| Formula: | C2h8o7p2 |
|
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Product Name: Hydroxyethylidene Diphosphonic Acid (HEDP)
CAS Number: 2809-21-4
Molecular Formula: C2H8O7P2
Appearance: White crystalline granules or powder
Density: Approximately 1.5 g/cm³
Melting Point: [Specific melting point if available]
Boiling Point: Not applicable; decomposes upon heating
pH: 1.5 - 2.0 in a 10% aqueous solution
Solubility: Highly soluble in water
Product Description: HEDP is an advanced organic phosphonic acid used as a high-performance sequestrant and scale inhibitor. It is renowned for its ability to form stable chelates with a wide range of metal ions, thereby preventing scale formation and corrosion in various industrial systems.
Key Features:
Applications:
Safety Information:
Storage Conditions:
HEDP is an organic phosphonic acid used as a sequestering agent and scale inhibitor in various industrial applications, including water treatment, cooling systems, boiler water treatment, and oilfield operations.
HEDP prevents scale formation by chelating with metal ions such as calcium, iron, copper, and zinc, forming soluble complexes that prevent the precipitation of scale.
Yes, HEDP is stable and effective at temperatures up to 250°C, making it suitable for use in high-temperature water treatment processes.
HEDP should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and heat sources. It should be kept in tightly sealed containers to maintain product integrity and prevent contamination.
When handling HEDP, wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and a mask to prevent skin and eye contact. In case of contact, flush immediately with plenty of water and seek medical advice if necessary.
HEDP is considered eco-friendly due to its biodegradable nature and lower toxicity compared to other chelating agents. However, it should still be used and disposed of according to local regulations to minimize environmental impact.
The recommended dosage of HEDP depends on the specific application and water chemistry. It typically ranges from 1-10 mg/L for scale inhibition and 10-50 mg/L for corrosion inhibition. Consult with a water treatment specialist for precise dosage recommendations.
Yes, HEDP can be used in combination with other water treatment chemicals, such as polycarboxylic acids, to achieve synergistic effects in scale and corrosion control.
HEDP exhibits excellent stability in high pH environments, resisting hydrolysis and decomposition, making it suitable for use in alkaline water treatment processes.
HEDP appears as white crystalline granules or powder and is highly soluble in water. It has a pH of 1.5 - 2.0 in a 10% aqueous solution.
| Property or Characteristic | Description |
| Chemical Formula | C2H8O7P2 |
| Appearance | Clear Liquid |
| Solubility in Water | Highly Soluble |
| pH Tolerance | Wide pH Range Tolerance |
| Scale and Corrosion Control | Effective Inhibition |
| Thermal Stability | Maintains Performance at High Temperatures |
| Biodegradability | Environmentally Friendly |
| Complex Formation | Forms Stable Complexes with Metal Ions |
Packed in kraft paper or PE bags with inner plastic flim bags.
25kgs/bag,1000kg/palllet,40bags/pallet.
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