Properties:

Specification:

Package and Storage:

EDTMP·Na5 乙二胺四甲叉膦酸五钠 EDTMP·Na5

Ethylene Diamine Tetra (Methylene Phosphonic Acid) Pentasodium Salt (EDTMP?Na5)

CAS No. 7651-99-2 分子式: C6H15O12N2P4Na5 Molecular weight: 409 结构式:

一、产品性能

EDTMP·Na5是中性产品， EDTMP·Na5是含氮有机多元膦酸盐，属阴极型缓蚀剂。能与水混溶，无毒无污染，化学稳定性及耐温性好，在200℃下仍有良好的阻垢效果。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，使钙垢正常结晶破坏。EDTMP钠盐对硫酸钙、硫酸钡垢的阻垢效果好。

EDTMP·Na5用于循环水和锅炉水的缓蚀阻垢剂、无氰电镀的络合剂、印染工业软水剂、电厂冷却水处理等。

EDTMP·Na5作为固体产品具有轻微吸潮性，方便运输和在寒冷条件下使用。

二、质量指标

三、包装与贮存

EDTMP?Na5液体用塑料桶包装，每桶25kg或250kg， EDTMP?Na5固体用内衬聚乙烯袋的塑料袋包装，每袋净重20Kg或根据用户需要确定。贮于室内阴凉、干燥处，防潮。贮存期十二个月。

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CAS No. 7651-99-2 Molecular Formula: C6H15O12N2P4Na5 Molecular weight: 409 Structural Formula:

Properties:

EDTMP·Na5 is a neutral solid product. It is nitrogenous organic polyphosphonic acid, which is a part of cathodic corrosion inhibitor. EDTMP·Na5 can be fully dissolved in water, innocuous and none pollution to environment, has good chemical stability and thermal tolerance. EDTMP·Na5 has good scale inhibition property under temperature 200℃. EDTMP·Na5 can dissociate into 8 positive-negative ions, thus can chelate with more than two metal ions to form more than two polymer reticulation complex, the complex can be quickly dissolved in water to destroy the normal crystallization of calcium scale. EDTMP·Na5 shows better scale inhibition effects to calcium sulfate and barium sulfate. EDTMP·Na5 can be used as scale and corrosion inhibitor for circulating water and boiler water system, chelating agent in non-cyanide electroplating, water-softening agent in dyeing industry, etc. The solid state EDTMP·Na5 is slightly easy to deliquescence, convenient in transportation and suitable for usage in winter and freezing districts.

Specification:

items　index

Appearance　Amber transparent liquid　White powder

Active content (EDTMP·5Na)% 30.0-32.5　81.4 min

Active content (EDTMPA)% 　24.0-26.0　65.0 min

Chloride (Cl) %　2.0 max　2.0 max

Density (20℃) g/cm3　1.25 max　--

Fe(Fe3+)ppm　20 max　20 max

PH (1% water solution)　6.0-8.0　6.0-8.0

Package and Storage:

For liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for ten months in room shady and dry place. For solid: inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients. Storage for one year in room shady and dry place.