1-Hydroxyethylidene-1,1-diphosphonic acid

Send Inquiry

Request To Call Back

1-Hydroxyethylidene-1,1-diphosphonic acid

Price 1.2 USD ($)/ Kilograms

Get a Price/Quote

MOQ : 1 Kilograms

1-Hydroxyethylidene-1,1-diphosphonic acid Specification

Taste
Odorless

Solubility
Completely soluble in water

EINECS No
220-552-8

Grade
Industrial Grade, Technical Grade

Shape
Liquid or crystalline solid

Smell
Odorless

Properties
Excellent chelating agent, scale inhibitor, and corrosion inhibitor. Stable under high pH and temperature. Good compatibility with other chemicals.

Melting Point
>180C (decomposes)

Molecular Formula
C2H8O7P2

Physical Form
Liquid or Powder

Structural Formula
CH3C(OH)(PO3H2)2

Product Type
Phosphonic Acid Compound

Application
Water treatment, detergents, cleaning agents, oilfield chemicals, textile, and dyeing

Ph Level
Liquid 2.0 max (1% water solution)

HS Code
29319090

Density
1.33 Gram per cubic centimeter(g/cm3)

Appearance
Clear colorless to pale yellow transparent liquid or white crystalline powder

Usage
Used as scale and corrosion inhibitor, chelating agent, dispersant in industrial water, oilfields, etc.

Ingredients
1-Hydroxyethylidene-1,1-diphosphonic acid (HEDP)

Storage
Store in a cool, dry, well-ventilated place away from sunlight and moisture

Poisonous
Non-toxic under recommended usage

Refractive Rate
1.403 (60% liquid solution)

Molecular Weight
206.03 g/mol

Shelf Life
12 months in original sealed packaging

Purity
60%, 90%, others depending on supplier

CAS No
2809-21-4

Viscosity
Variable (liquid form ~24 mPa.s at 20C)

Heavy Metals Content
10 ppm

Flash Point
Non-flammable

Iron Content (Fe)
10 ppm

Free Phosphorous Acid
1.0%

Boiling Point
Decomposes before boiling

pKa Values
1.10 (first), 2.61 (second), 7.02 (third), 11.0 (fourth)

Compatibility
Compatible with cationic and non-ionic surfactants

Environmental Impact
Biodegradable, environmentally friendly at recommended doses

Packing
30 kg/250 kg HDPE drums, IBC tanks, or as customized

Phosphoric Acid Content
1.0%

Chloride Content
0.01%

About 1-Hydroxyethylidene-1,1-diphosphonic acid

HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. It can dissolve the oxidized materials on these metals' surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperatures of 250C. HEDP has good chemical stability under high pH values, is hard to hydrolyze, and is hard to decompose under ordinary light and heat conditions. Its acid/alkali and chlo rine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in the water system to form a hexa-element chelating complex, with calcium ions in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

Application:
.
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with Poly carboxylic acid.

Reliable Scale and Corrosion Inhibition

HEDP effectively prevents scale formation and metal corrosion in water systems, making it essential for industrial water treatment and oilfield operations. Its chemical stability under high pH and temperature conditions ensures long-lasting protection across challenging environments, reducing maintenance costs and downtime. The strong chelating ability allows it to bind with metal ions, keeping them in solution and preventing undesirable deposits.

Safe, Non-Toxic, and Environmentally Friendly

With a non-toxic profile under recommended use and maximum heavy metals content of 10 ppm, HEDP is safe for industrial applications. It is non-flammable and biodegradable, offering an environmentally responsible option for water treatment and cleaning processes. Careful adherence to prescribed doses ensures optimum performance while minimizing environmental impact.

Wide Range of Industrial Applications

HEDP is highly versatile, finding utility in water treatment, detergents, textile processing, and oilfields. Its compatibility with various surfactants and other chemicals makes it suitable for blending in multipurpose formulations. The product is available in both liquid and powder forms, catering to diverse industrial processing requirements.

FAQ's of 1-Hydroxyethylidene-1,1-diphosphonic acid:

Q: How is 1-Hydroxyethylidene-1,1-diphosphonic acid commonly used in industrial applications?

A: It is primarily employed as a scale inhibitor and corrosion inhibitor in water treatment systems, oilfields, and cleaning agents. HEDP also acts as a chelating and dispersing agent in detergents, textiles, and dyeing processes, preventing metal ions from interfering with system performance.

Q: What are the main benefits of using HEDP in water treatment processes?

A: HEDP provides excellent protection against scale build-up and metal corrosion, even at high pH and temperature. This extends equipment life and reduces maintenance. Its strong chelating ability keeps metal ions dissolved, resulting in more efficient water system operation.

Q: When should HEDP be added to a water system for optimal effectiveness?

A: For best results, HEDP should be introduced at the start of the water treatment process or before scale and corrosion issues develop. Continuous dosing ensures ongoing protection and stability throughout system operation.

Q: Is HEDP compatible with other chemicals and surfactants commonly used in formulations?

A: Yes, HEDP is compatible with cationic and non-ionic surfactants, as well as a wide range of other industrial chemicals, allowing easy integration into multipurpose formulations for cleaning and water treatment.

Q: What steps should be followed for proper storage of HEDP?

A: Store HEDP in its original, sealed packaging in a cool, dry, and well-ventilated area away from sunlight and moisture. Proper storage maintains its quality and ensures a shelf life of up to 12 months.

Q: Where can you source HEDP, and in what packaging options is it available?

A: HEDP can be sourced from exporters, manufacturers, and suppliers in China. It is available in 30 kg or 250 kg HDPE drums, IBC tanks, or can be customized based on specific requirements.

Tell us about your requirement