二乙烯三胺五甲叉膦酸（DTPMP）
Diethylene Triamine Penta（Methylene Phosphonic Acid）
别名：二乙烯三胺五亚甲基膦酸；DETPMP；二亚乙基三氨基五甲基磷酸；
二乙撑三胺五亚甲基膦酸
分子式： C9H28O15N3P5 分子量： 573.0
Molecular formula: C9H28O15N3P5 Molecular weight: 573.0
CAS 5827-60-8
结构式：
Structural formula:
1、性能 Performance
DTPMP是近几年发展起来的一种新型有膦水处理剂。它的主要作用是抑制水垢的增长，兼有一定的缓蚀作用，与水混溶性好，对硫酸钙、碳酸钙有良好的阻垢作用，特别是高碱度下，对碳酸钙有较好的阻垢作用。
DTPMP is new type of organic phosphorus water treatment agent developed in recent years. Its main effects are to inhibit scales and certain corrosion inhibition as well. It has good compatibility with water, and has good scale inhibition against calcium sulphate and calcium carbonate. Especially under high alkalinity, it has good scale inhibition against calcium carbonate.
2、用途 Usage
本品主要用于电厂、化工厂、化肥厂循环水系统中作为阻垢缓蚀剂。特别用于高硬度、高碱度、高PH循环水。本品还可作为过氧化物稳定剂和印染助剂。
DTPMP is widely used for scale and corrosion inhibitions in circulating water treatment in fields of power plant, chemical industry and fertilizer plant. It is specially used in circulating water with high hardness, high alkalinity and high pH value. It can also be used as peroxide stabilizer and dyeing & printing auxiliary.
3、质量指标 Quality index
外观：红棕色透明液体
Appearance: reddish brown transparent liquid
| 项目名称 Item name | 指标 Index |
| 有效组分：% Active component: % | 48.0-52. |
| 密度：（20℃）g/cm3 ≥ Density: （20℃） g/cm3 ≥ | 1.40 |
| PH值（1％水溶液） ≤ Ph value （1% water solution） ≤ | 2.0 |
| 氯化物（以CI-计）% Chloride （as Cl-） % | 1.04-17.0 |
| 亚磷酸：（以PO33-计）% ≤ Phosphorous acid: （as PO33-） % ≤ | 5.0 |
4、使用方法 Usage
本品在循环冷却水中单独投加时，一般剂量2～10ppm，与HPMA按1：3比例复配后，可用于低压锅炉内水处理，也可与BTA，PAAS，锌盐等复配使用。
When used alone in the circulating cooling water, the dosage 2~10ppm is preferred. When built with HPMA by ratio ETDMP: HPMA=1:3, it can be used for low pressure boiler. It can also be built with BTA, PAAS and zinc salt.
5、包装与贮存 Packing and storage
本品采用聚乙烯塑料桶包装，每桶净重25kg，或采用内衬聚乙烯塑料薄膜的铁桶包装，每桶净重200kg，运输时防止曝晒，贮存在干燥通风的库房内，贮存期10个月。
Pack in 25kg net polyethylene （PE） plastic drum, or in 200kg net iron bucket with polyethylene （PE） inner-lining. Avoid insolation during transportation. Be stored for ten months in room dry and ventilatedplace.
