【edtmps】的意思_什么是edtmps

乙二胺四甲叉膦酸钠 EDTMPS

EXTylene Diamine Tetra (MeXTylene Phosphonic Acid) Sodium【CAS】 1429-50-1

别名：乙二胺四亚甲基叉膦酸钠　Dequest 2040

分子式：C6H12O12N2P4Na8C

产品性能

本品是含氮有机多元膦酸，属阴极型缓蚀剂，与无机聚磷酸盐相比，缓蚀率高3~5倍。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对硫酸钙、硫酸钡垢的阻垢效果好。

质量指标 HG/T 3538-2011

乙二胺四甲叉膦酸钠

项目	指标
外观	黄棕色透明液体
活性组分（以EDTMPS计）% ≥	30.0
有机膦（以PO₄计）% ≥	10.0
亚磷酸（以PO₃计）% ≤	5.0
磷酸（以PO₄计）% ≤	1.0
密度（20℃）g/cm ≥	1.25
氯化物（以Cl计）% ≤	3.0
pH值（1%水溶液）	9.5-10.5

使用方法

EDTMPS用于循环水和锅炉水的缓蚀阻垢剂、无氰电镀的络合剂、纺织印染行业螯合剂和氧漂稳定剂。在循环冷却水中单独投加时，一般剂量2~10mg/L。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。

包装与贮存

1、水处理剂乙二胺四甲叉膦酸钠的包装桶上应涂刷牢固的标志，内容包括：生产厂名、产品名称、商标、批号或生产日期、净质量、厂址、本标准编号及GT/T191规定的“向上”标志。

2每批出厂的水处理剂乙二胺四甲叉膦酸钠应附有质量检验报告以及质量合格认定。

3水处理剂乙二胺四甲叉膦酸钠的包装采用聚乙烯塑料桶包装。桶包装时加内盖密封，每桶净质量25kg；或采用铁桶包装，每桶净质量200kg。

4运输时应避免撞击以免泄漏，储存时不要暴晒。

5水处理剂乙二胺四甲叉膦酸钠的有效储存期为半年。

安全防护

EDTMPS为弱碱性，操作时注意劳动保护，应避免与皮肤、眼睛等接触，接触后应立即用大量清水冲洗。

英文释义

Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium (EDTMPS)

CAS No. 1429-50-1

Molecular Formula: C ₆H ₁₂O ₁₂N ₂P ₄Na ₈Molecular weight: 612.13

Structural Formula:

EDTMPSis nitrogenous organic polyphosphonic acid, a part of cathodic corrosion inhibitor.Its 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 positive-negative ions, thus can chelate with many metal ions to form polymer reticulation complex, to destroy the normal crystallization of calcium scale.EDTMPSshows better antiscale effects to calcium sulfate and barium sulfate.

Specification:

items	index
Appearance	Clear yellow
Active component (EDTMPS)%	28.0min
asPO₄%	10.0min
as PO₃%	5.0max
asPO₄%	1.0max
pH (1% water solution)	9.5-10.5
Density (20℃) g/cm	1.25min
Chloride (Cl)%	3.0max

Usage:

EDTMPScan be used as corrosion inhibitor in circulating cool water system and boiler water. It is a chelating agent in non-cyanogen electroplating industry and a water-softening agent in printing & dyeing industry. When used alone, 2~10mg/L 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.

Package and Storage:

200L plastic drum,IBC(1000L),customers’ requirement. Storage for ten months in shady room and dry place.

Synonyms:

EDTMPS;EDTMP;EDTMPA;Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium; EDTPO;ETHYLENEDIAMINE TETRA(METHYLENEPHOSPHONIC ACID)

Keywords:EDTMPS

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