Product Overview
Our range of 1-Hydroxy Ethylidene-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 temperature 250.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. 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. Specification: AppearanceClear, Colorless to pale yellow aqueous solutionWhite crystal powder Active content (HEDP)%58.0-62.090.0min Phosphorous acid (as PO33-)%1.0 max0.8 max Phosphoric acid (asPO43- )%0.6 max0.5 max Chloride (as Cl-) ppm 100.0 max100.0max pH (1% solution)2.0 max2.0 max Density (20.C)g/cm31.43-1.47- Fe,mg/L10.0 max5.0 max Colour APHA (Hazen)30.0 max- Acetic acid %0.5 max Ca sequestration (mg CaCO3/g)500.0 m
Our range of 1-Hydroxy Ethylidene-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 temperature 250.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. 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. Specification: AppearanceClear, Colorless to pale yellow aqueous solutionWhite crystal powder Active content (HEDP)%58.0-62.090.0min Phosphorous acid (as PO33-)%1.0 max0.8 max Phosphoric acid (asPO43- )%0.6 max0.5 max Chloride (as Cl-) ppm 100.0 max100.0max pH (1% solution)2.0 max2.0 max Density (20.C)g/cm31.43-1.47- Fe,mg/L10.0 max5.0 max Colour APHA (Hazen)30.0 max- Acetic acid %0.5 max Ca sequestration (mg CaCO3/g)500.0 m
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