Hydroxyethylidene diphosphonic acid

Hydroxyethylidene diphosphonic acid

1-Hydroxyethylidene-1,1-Diphosphonic Acid; 1-Hydroxyethane-1,1-Diphosphonic Acid; Etidronic Acid

CAS 2809-21-4

Chemical Formula C₂H₇O₇P₂

Molecular Weight 206.03 g/mol

Hydroxyethylidene diphosphonic acid (is an organophosphonic acid widely used as a chelating agent. It inhibits scale formation by binding to metal ions, making it useful in water treatment, detergents, and industrial cleaning. It is known for its ability to resist oxidation and maintain effectiveness under high temperatures, it prevents mineral scale build up in cooling tower water and other process equipment.

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Industrial Uses

1. Water Treatment

  • Scale Inhibitor and Corrosion Inhibitor: Hydroxyethylidene diphosphonic acid is widely used as a scale inhibitor and corrosion inhibitor in cooling water systems, boilers, and desalination plants. It prevents the formation of scale deposits by chelating metal ions like calcium and magnesium and helps maintain the efficiency and longevity of water systems by reducing corrosion of metal surfaces.

2. Cleaning & Disinfectants

  • Chelating Agent: In the detergent and cleaning industry, Hydroxyethylidene diphosphonic acid is used as a chelating agent to bind with metal ions in hard water, enhancing the effectiveness of cleaning agents. It is found in formulations for industrial and household cleaners, where it helps remove stains, limescale, and soap scum from surfaces.

3. Personal Care

  • Stabilizer: Hydroxyethylidene diphosphonic acid is used as a stabilizing agent in cosmetics and personal care products to maintain the stability and effectiveness of formulations, especially those containing metal-sensitive ingredients. It helps prevent discoloration and degradation of products such as shampoos, conditioners, and skincare creams.
  • Chelating Agent: In cosmetics, it is used as a chelating agent to stabilize formulations by binding with metal ions that could otherwise degrade the product or affect its color, odor, or consistency.
  • pH Adjuster: It can be used to adjust the pH of personal care products, ensuring the stability and efficacy of active ingredients.

4. Oil & Gas

  • Scale Inhibitor in Oilfields: Hydroxyethylidene diphosphonic acid is utilized in oilfield applications to prevent scale formation in pipelines, equipment, and reservoirs. It is added to drilling fluids and water injection systems to control scale deposition, which can block equipment and reduce the efficiency of oil and gas production processes.
  • Enhanced Oil Recovery: In the oil and gas sector, HEDP is utilized in enhanced oil recovery operations and as a scale inhibitor in downhole and surface systems.

5. Pulp & Paper Solutins

  • Chelating Agent and Bleach Stabilizer: In the paper and pulp industry, Hydroxyethylidene diphosphonic acid is employed as a chelating agent to control metal ions that can interfere with the bleaching process. It helps stabilize the bleaching agents and improves the whiteness and quality of the paper by preventing unwanted reactions and degradation of cellulose fibers.

Specifications

Assay Typically ≥ 95%
Appearance Colorless to pale yellow liquid
Odor odorless
Boiling Point decomposes before boiling
Melting Point 60-65°C (140-149°F)
Density 1.36–1.46 g/cm3
Solubility Soluble in water
Viscosity 1.45 g/cm³
Flash Point 303.8°C

Hazard Symbols

Corrosives
Irritants/Sensitisers/Other Hazards

FAQs

1. What is the current price of Hydroxyethylidene diphosphonic acid in India?
The price of Hydroxyethylidene diphosphonic acid can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91-22-4343 2121 directly for a customized quote tailored to your needs.

2. Where can I buy Hydroxyethylidene diphosphonic acid in India?
You can purchase Hydroxyethylidene diphosphonic acid from MULTICHEM, a leading importer with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across India. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Hydroxyethylidene diphosphonic acid?
Our minimum order quantity (MOQ) for Hydroxyethylidene diphosphonic acid is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Hydroxyethylidene diphosphonic acid supplied by Multichem?
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.