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China, Chinese Chemical Product 1-Hydroxyethylidene-1, 1-Diphosphonic Acid Water Treatment Chemical Corrosion Inhibitor HEDP CAS No. 2809-21-41 Industrial Products Supplier Manufacturer Details, price list catalog:
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Chemical Auxiliary Catalyst1-Diphosphonic Acid Water Treatment Chemical Corrosion Inhibitor HEDP CAS No. 2809-21-4Water Treatment Chemical HEDPChemical HEDP
Shandong Xintai Water Treatment Technology Co., Ltd.
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Product Description Product Description1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) CAS No. 2809-21-4 Dequest:2010Molecular Formula: C2H8O7P2 Molecular weight: 206.02Structural Formula: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 250oC. 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. Product ParametersSpecification:itemsindexAppearanceColorless or light yellow transparent liquidActive content(HEDP)% 58.0-62.0Phosphorous acid(as PO33-)%2.0 maxPhosphoric acid (asPO43- )%0.8 maxChloride (as Cl-) mg/g0.1 maxpH(1% solution)1.5-2.0Density (20oC) g/cm31.40 minCa Chelating ability mg/g500 minFe Ions(as Fe3+) ppm10 maxUsage: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. Packaging & ShippingPackage 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. Safety Protection:Acidity, Avoid contact with eye and skin, once contacted, flush with water. Company ProfileShandong Xintai Water Treatment Technology Co., Ltd. is the professional water treatment chemicals manufacturer in China, the company sites at the east of Zao Zhuang City, Shan Dong Province, China 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, 14001, 45001 system certificate, and make sure quality stable.It owns independent import and export rights, and products are sold all over the world, and highly approved by clients.
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