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  • 1 Hydroxy Ethylidene Diphosphonic Acid Hedp - China

    price: contact company for price

    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

    Celsius degree. 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: items index Appearance Colorless or light yellow

    transparent liquid White crystal powder Active

    content(HEDP)% 58.0-62.0 89.0 min Phosphorous

    acid(as PO33-)% 2.0 max 0.5 max Phosphoric acid (asPO43-

    )% 0.8 max 0.5 max Chloride (as Cl-)% 0.01 max 0.01 max

    pH(1% solution) 2 max 2 max Density

    (20℃)g/cm3 1.40 — Fe ion ppm 10 max 20 max Colour

    APHA (Hazen) 40 max —

    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.

    1 Hydroxy Ethylidene Diphosphonic Acid Hedp

    Thank you in advance for your consideration


    Company Contact:


    • Phone: 866323461088

    • Address: Zhongtai Industrial Park,Xiwangzhuang Town , Shizh, Zaozhuang, China

    • Email: Email


    Published date: September 6, 2012 -

    • Business Description: ZaoZhuang XinTai Water Treatment Technology Co., Ltd.. is the professional water treatment chemicals producer in China, the company sites at the outer ring road of Zao Zhuang City,Shan Dong Province, where has comfortable climate, beautiful scenery and convinent transportation. The product families include organic phosphonic series, organic phosphate salt, corrosion inhibitors, chelating agents, dispersants, RO membrane chemicals and etc., covering wide ranges from single to complex agents. The products are widely used in circulating water system, boiler and heating water system in fields such as steel & iron, petrochemcal, power plant and medical industries etc.To satisfy the need of different fields, some solid products such as organophosphoric acids and their sodium salts are developed recently in our factory, including high pure grade and ordinary grade. Some polymer solid products have also been developed. To cooperate with our clients for water quality analysis and treatment process planning, we have set up a synthesis and application laboratory, several research projects are done in this laboratory. Our Sales characteristics:Pay attention to manufacture of water treatment chemicals, preferably as a workshop of water treatment field. Ideal clients: intermediary buyers of water treatment chemicals, not terminal business. Free supply services of water quality analysis, prescription screening, operation planning draft and spot supervision. Supply new product development and trial produce, make trial product on client order. Obtain ISO9001:2000 quality management system certificate, and make sure quality stable.

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