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China, Chinese 60% 90% HEDP 1-Hydroxyethylidene-1, 1-Diphosphonic Acid CAS 2809-21-41 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Chemical Auxiliary CatalystWater Treatment Chemical1-Diphosphonic Acid CAS 2809-21-4HEDP1-Hydroxyethylidene-1 1-Diphosphonic Acid
Ningbo Samreal Chemical Co., Ltd.
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Product Description 1-Hydroxyethylidene-1,1-diphosphonic acid [2809-21-4]IdentificationName 1-Hydroxyethylidene-1,1-diphosphonic acidSynonyms 1-Hydroxyethane-1,1-diphosphonic acid; 1-Hydroxyethylidenedi(phosphonic acid); Dequest 2010; Etidronic acid; HEDP Molecular Structure Molecular Formula C2H8O7P2Molecular Weight 206.03CAS Registry Number 2809-21-4EINECS 220-552-8 Properties Density 1.45 (60% aq.) Specification:ItemsIndexAppearanceClear, Colorless to pale yellow aqueous solutionWhite crystal powderActive content (HEDP)%60.0 min90.0 minActive content (HEDP·H2O)%-98.0 minPhosphorous acid (as PO33-)%2.0 max0.8 maxPhosphoric acid (as PO43- )%0.8 max0.5 maxChloride (as Cl-)%0.02 max0.01 maxpH (1% water solution)2.0 max2.0 maxDensity (20oC)g/cm31.40 min-Fe, mg/L20.0 max10.0 maxCa sequestration (mg CaCO3/g)500.0 min 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.Package and Storage:HEDP liquid: 200L plastic drum,IBC(1000L),customers' requirement.HEDP solid: 25kg/bag,customers' requirement.Storage for twelve months in room shady and dry place.Safety Protection:Acidity, Avoid contact with eye and skin, once contacted, flush with water.
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