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Shandong Taihe Chemicals Co., Ltd

Shizhong Districr,Zaozhuang,Shandong,China

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

China

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Product Description

*-Hydroxy Ethylidene*1, *-Diphosphonic Acid (HEDP) CAS No. ********4 Molecular Formula: C2H8O7P2 Molecular weight: **6.*2 Propertiesof HEDP: HEDP is an organophosphoric acid corrosion inhibitor. HEDP can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. HEDP can dissolve the oxidized materials on these metals' surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature **0 C. 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, HEDP 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, HEDP can be used as cleaning agent in electronic fields and as additives in daily chemicals. Specification of HEDP: Appearance: Colorless or light yellow transparent liquid White crystal powder Active content (HEDP)%: *8.***2.0 *0.0 min Phosphorous acid (as PO**-)%: 2.0 max 0.5 max Phosphoric acid (asPO**- )%: 0.8 max 0.5 max Chloride (as Cl-)% 0.*1 max 0.*1 max pH (1% solution): 2 max 2 max Density (*0 C)g/cm3: 1.*0 - Fe ion ppm: *0 max *0 max Colour APHA (Hazen): *0 max - Usage of HEDP: 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, ***** light woven industry, HEDP is used as detergent for metal and nonmetal. 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP)

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Contact Person :Ms. Hao

Company:Shandong Taihe Chemicals Co., Ltd

Address:Shizhong Districr, Zaozhuang, Shandong, China,277100

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