| 型号 | YF770 | 化学成份 | 有机聚合物 |
| 用途 | 电厂阻垢剂 | | 安美 |
| 类型 | 缓蚀阻垢剂 | 外观 | 无色透明液体 |
| 有效物含 | 38(%) | 钛含 | 98(%) |
| PH值使用范围 | 5-9 | 参考用 | 3-8PPM |
| CAS | 7987-6-9 |
缓蚀阻垢剂 乙二四甲叉膦钠 EDTMPS Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium 【CAS】 1429-50-1 别名:乙二四亚甲膦钠 Dequest:2040 分子式 C6H12O12N2P4Na8C 相对分子:612.13 编辑本段一、性能 EDTMPS是含氮有机多元膦,属阴极型缓蚀剂,与无机聚磷盐相比,缓蚀率高3~5倍。能与水混溶,无无污染,化学稳定性及耐温性好,在200℃下仍有良好的阻垢效果。EDTMPS在水溶液中能离解成8个正负离子,因而可以与多个金属离子螯合,形成多个单体结构大分子网状络合物,松散地分散于水中,使钙垢正常结晶被破坏。EDTMPS对钙、钡垢的阻垢效果好。编辑本段二、指标 HG/T 3538-2003 项 目 指 标 外 观 黄棕透明液体 活性组分(以EDTMPS计)% ≥ 30.0 有机膦(以PO43- 计)% ≥ 10.0 亚磷(以PO33-计)% ≤ 5.0 磷(以PO43-计)% ≤ 1.0 PH值(1%水溶液) 9.5-10.5 密度(20℃)g/cm3 ≥ 1.25 物 (以Cl-计)% ≤ 3.0 编辑本段三、应用范围与使用方法 EDTMPS用于循环水和锅炉水的缓蚀阻垢剂、无电镀的络合剂、纺织印染行螯合剂和氧漂稳定剂。在循环冷却水中单独投加时,一般剂2~10mg/L。EDTMPS与HPMA按1:3比例复配后,可用于低压锅炉炉内水处理。EDTMPS也可与BTA、PAAS、锌盐等复配使用。编辑本段四、包装与贮存 EDTMPS用塑料桶包装, 每桶25kg或根据用户需要确定。贮于室内阴凉处,贮存期十个月。 ———————————————————————————————————————————————————————————————————————————————— Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium (EDTMPS) CAS No. 1429-50-1 Dequest: 2040 Molecular Formula: C6H12O12N2P4Na8 Molecular weight: 612.13 Structural Formula: Properties: EDTMPS is nitrogenous organic polyphosphonic acid, a part of cathodic corrosion corrosion inhibition is 3~5 times better than that of inorganic polyphosphate. It can be fully dissolved in water, innocuous and none pollution to environment, has good chemical stability and thermal tolerance. It shows excellent scale inhibition ability under temperature 200℃. It can dissociate into 8 itive-negative ions, thus can chelate with many metal ions to form polymer reticulation complex, to destroy the normal crystallization of calcium scale. EDTMPS shows better antiscale effects to calcium sulfate and barium sulfate. Specification: items index Appearance Clear yellow to umber transparent liquid Active component(EDTMPS)% 30.0min Organic phosphonic acid(asPO4 )% 10.0min Phosphorous acid(as PO3)% 5.0max Phosphoric acid (asPO4 )% 1.0max pH(1% water solution) 9.5-10.5 Density (20℃)g/cm 1.25m