羟基乙叉二膦酸HEDP的中英文简介说明和解释.doc

羟基乙叉二膦酸HEDP中英文简介说明和解释1-HydroxyEthylidene-1,1-DiphosphonicAcid,HEDP【CAS】 2809-21-4别名：羟基亚乙基叉二膦酸、HEDPA、（1-羟基亚乙基）二膦酸、1-二磷酸、1-羟基亚乙基-1Dequest 2010分子式： C2H8O7P2相对分子质量：206.02结构式：山东鑫泰水处理技术有限公司专业生产HEDPHEDP即羟基乙叉二膦酸,化学用品，一种有机磷酸类阻垢缓蚀剂，能与铁、铜、锌等多种金属离子形成稳定的络合物，能溶解金属表面的氧化物。一、产品性能HEDP是一种有机膦酸类阻垢缓蚀剂，能与铁、铜、锌等多种金属离子形成稳定的络合物，能溶解金属表面的氧化物。在250下仍能起到良好的缓蚀阻垢作用，在高pH值下仍很稳定，不易水解，一般光热条件下不易分解。耐酸碱性、耐氯氧化性能较其它有机膦酸（盐）好。可与水中金属离子，尤其是与钙离子形成六圆环螯合物，因而具有较好的阻垢效果并具明显的溶限效应，当和其它水处理剂复合使用时，表现出理想的协同效应。、HEDP 固体属于高纯产品，适用于冬季严寒地区；特别适用于电子行业的清洗剂和日用化学品添加剂。二、质量指标 GB/T26324-2010项 目指 标HEDP外 观无色或淡黄色透明液体白色晶状固体活性组分（以HEDP计） 50.060.090.0亚磷酸（以PO33-计）% 2.02.00.80磷酸（以PO43-计）% 0.80.80.50氯化物 (以Cl-计)% 1.01.00.10PH值（1%水溶液） 2.02.02.0密度（20）g/cm31.341.40活性组分(以HEDPH2O计) % 98.0三、应用范围与使用方法【用途一】HEDP 是锅炉和换热器的阻垢剂和缓蚀剂、无氰电镀的络合剂、皂用螯合剂、金属和非金属的清洗剂。【用途二】HEDP 常用作锅炉水、循环水、油田注水处理中的阻垢缓蚀剂。常与聚羟酸类阻垢分散剂复配。还可作无氰电镀络合剂，漂染业的固色剂，过氧化氢稳定剂。【用途三】HEDP 为无氰电镀的主料。配制成无氰电镀铜溶液，在钠铁上直接电镀铜层结合力良好。镀层光滑、色泽好。一般用量60%含量为100120 ml/L。硫酸铜用量为1520 g/L。另外，在电镀前将镀件浸在本品的1%2%溶液中，使电镀件转为活化态，再进行电镀更能提高效果。【用途四】HEDP 作阻垢剂一般使用浓度110mg/L，作缓蚀剂一般使用浓度1050mg/L；作清洗剂一般使用浓度10002000mg/L；通常与聚羧酸型阻垢分散剂配合使用。四、包装与贮存HEDP 液体为塑料桶包装，每桶30Kg或250Kg；HEDP固体为塑料编织袋包装，每袋净重25Kg。贮于室内阴凉通风处，防潮，贮存期十个月。五、安全防护：HEDP为酸性，应避免与眼睛、皮肤接触，一旦溅到身上，应立即用大量的水冲洗。【水处理剂羟基乙叉二膦酸HEDP相关的内容】有机膦系列阻垢缓蚀剂相关内容羟基乙叉二膦酸HEDPHEDPAHEDP的钠盐羟基乙叉二膦酸二钠HEDPANa2HEDP的钠盐羟基乙叉二膦酸四钠HEDPNa4HEDP的钾盐羟基乙叉二膦酸钾HEDPKX关键字 ：HEDPA、HEDP、循环水、HEDPNa2、HEDPANa4、HEDPAKx、阻垢剂山东鑫泰水处理技术有限公司1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP)CAS No.: 2809-21-4Molecular Formula: C2H8O7P2Molecular weight: 206.02Structural Formula:Properties:HEDPis 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.HEDPshows excellent scale and corrosion inhibition effects under temperature 250.HEDPhas 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:itemsindexAppearanceClear, Colorless to pale yellow aqueous solutionWhite crystal powderActive content (HEDP)%58.0-62.090.0 minActive content (HEDPH2O)%-98.0 minPhosphorous acid (as PO33-)%1.0 max0.8 maxPhosphoric acid (asPO43-)%0.6 max0.5 maxChloride (as Cl-) ppm100.0 max50.0maxpH (1% solution)2.0 max2.0 maxDensity (20)g/cm31.43-1.47-Fe，mg/L10.0 max5.0 maxColour APHA (Hazen)30.0 max-Acetic acid %0.5 maxCa sequestration (mg CaCO3/g)500.0 minUsage: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:HEDPliquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) b