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Basic Info.

Product Description

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:

• Superior Sequestering Capacity: Effectively binds with metal ions such as calcium, iron, copper, and zinc, preventing scale formation.
• Heat Stability: Retains its properties at elevated temperatures, offering protection up to 250°C.
• pH Stability: Exhibits excellent stability in high pH environments, resisting hydrolysis and decomposition.
• Eco-Friendly: Biodegradable and less toxic compared to traditional chelating agents.
• Versatile Applications: Suitable for use in various water treatment applications, including industrial cooling systems, boiler water treatment, and oilfield operations.

Applications:

• Water Treatment: Utilized in industrial and domestic water treatment to prevent scale and corrosion.
• Cooling Systems: Effective in closed-loop cooling systems to manage scale and corrosion.
• Boiler Water Treatment: Enhances boiler efficiency by preventing scale build-up.
• Reverse Osmosis: Employed to prevent scale formation in membrane systems.
• Detergents and Cleaners: Used to enhance cleaning performance and stability.

Safety Information:

• Handle with appropriate personal protective equipment (PPE), including gloves, safety goggles, and a mask.
• Avoid contact with skin and eyes. In case of contact, flush immediately with plenty of water and seek medical advice if necessary.

Storage Conditions:

• Store in a cool, dry, and well-ventilated area away from direct sunlight and heat sources.
• Keep containers tightly sealed to maintain product integrity and prevent contamination.

• HEDP (Hydroxyethylidene Diphosphonic Acid) FAQ

  What is HEDP and what are its main uses?

  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.

  How does HEDP prevent scale formation?

  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.

  Is HEDP stable at high temperatures?

  Yes, HEDP is stable and effective at temperatures up to 250°C, making it suitable for use in high-temperature water treatment processes.

  How should HEDP be stored?

  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.

  What safety precautions should be taken when handling HEDP?

  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.

  Is HEDP environmentally friendly?

  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.

  What is the recommended dosage of HEDP for water treatment?

  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.

  Can HEDP be used in combination with other water treatment chemicals?

  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.

  How does HEDP perform in high pH environments?

  HEDP exhibits excellent stability in high pH environments, resisting hydrolysis and decomposition, making it suitable for use in alkaline water treatment processes.

  What are the physical properties of HEDP?

  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.

Packed in kraft paper or PE bags with inner plastic flim bags.
25kgs/bag,1000kg/palllet,40bags/pallet.

Product Description

Detailed Photos

Product Parameters

Packaging & Shipping

Company Profile

Certifications