HEDP

1. 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
2.Cas no.: 2809-21-4
3.Active content (HEDP) :58.0-62.0%

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)

Properties:

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 temperature 250. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.

Specification:

Usage:

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 polycarboxylic acid.

Package and Storage:

HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.

Storage for ten months in room shady and dry place.

Our Company

Xiangyu is a leading supplier of water treatment chemicals, which is located in Weihai City, Shandong Province, China. It is special in manufacturing water treatment chemicals for many years. The main products, RO antiscalant (scale inhibitor), biocide, cleaner, flocculant, are widely used in all kinds of RO system. Xiangyu has been focusing on technical innovation and the series of RO antiscalant can reach the world-class standard in the world. Now Xiangyu has hundreds of clients all over the world, covering the thermal power plant, electronic, pharmaceutical, food, petroleum, chemical, automobile, paper-making so many industries.

Our advantage

We can supply the first-class RO chemicals with much competitive price. Our professional engineers also can help clients to find the most suitable chemicals and solution according to the water system condition. What we can do is to make your water system more environment-friendly and cost-saving.

Benefits To You:

The stability of your water treatment system

First-class chemicals with lower operating costs

Less feedwater required

More environment-friendly solution

Perfect service in water quality analysis, technical support

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