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1-hydroxy Ethylidene-1, 1-diphosphonic Acid

Posted at: Offers to Sell and Export | Posted on: Sat 27 Sep, 2008 1:56 am |
1 hydroxy ethylidene diphosphonic acid
Products Photos CatalogHydroxy Ethylidene Photos Catalog

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.

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.

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.

Acidity, Avoid contact with eye and skin, once contacted, flush with water. 

Company Contact:

No member photo
Contact Name: Fiona
Company Name: Qingdao IRO TAIHE International Trade Co., Ltd.
Email: Email
Tel: +86-532-85027466
Fax: +86-532-85028486
Street Address: Yihe International
2910 Room, Xianggang Mid-road
No.10, Qingdao, Shandong, China
Website: http://www.iro-taihe.cn
Member name: Fionacong
Country: China-CN China
Member Since: 27 September 2008
Total Leads: 22 Fionacong Import Export Business Leads
Business focus: Chemicals, Water Treatment, Water Reducing Agent
Verify: Safe Import Export Tips

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