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Hydroxyethylidene Diphosphonic Acid - HEDP

Silver Fern is a leading supplier and distributor of bulk specialty chemicals, with over 20 years of serving North America’s top manufacturers.

Hydroxyethylidene Diphosphonic Acid (HEDP) is an organophosphonic acid with multifunctional properties, widely used in industrial water treatment processes to prevent scale and corrosion.

Product Details

Formula:

C2H8O7P2

CAS Number:

2809-21-4

Also Known As:

1-Hydroxyethylidene-1,1-diphosphonic acid; Etidronic acid; Etidronate

Packaging:

Bulk tankers, totes, and drums

Typical Specifications

Data is representative of average lots;
data taken from specific lots may vary.

Appearance

Colorless to pale yellow liquid

Boiling Point, °C

105

Density, g/cm3

1.45

Flash Point, °C

176

Molecular weight, g/mol

206.02

Odor

Odorless

COMMERCIAL REQUESTS ONLY

Store in a cool, dry, well-ventilated area away from incompatible substances.
Hydroxyethylidene Diphosphonic Acid, commonly referred to as HEDP, is a versatile organophosphorus compound known for its superior chelating properties. As a crystalline powder, it is highly effective in inhibiting scale formation and corrosion in various water systems. This makes it an essential component in industrial water treatment processes, including cooling systems, boilers, and reverse osmosis systems. HEDP demonstrates remarkable stability under high pH and temperature conditions, which enhances its performance in harsh environments. Its ability to sequester metal ions, such as calcium, magnesium, and iron, prevents scale and sediment build-up, extending the lifespan of equipment and piping. Additionally, it acts as a stabilizer for peroxides, making it useful in textile and laundry applications. This compound is also frequently utilized in the detergent industry due to its ability to soften water and improve cleaning efficiency. In the oil and gas sector, HEDP serves as an effective scale inhibitor, ensuring smooth operations and reducing maintenance costs by preventing mineral deposits in pipelines and drilling equipment. Hydroxyethylidene Diphosphonic Acid is the ideal choice for industries seeking reliable solutions for scale prevention, corrosion control, and overall system efficiency.

Structure:

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