edtmps

Chemical name : Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium (EDTMPS)

CAS No. 1429-50-1 Dequest: 2040

Molecular Formula: C6H12O12N2P4Na8 Molecular weight: 612.13

KEY WORDS:EDTMPA, EDTMPS , EDTMP .NA5

EDTMPS is 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. EDTMPS shows better antiscale effects to calcium sulfate and barium sulfate.

EDTMPS can 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.

Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for ten months in room shady and dry place.

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

別名：乙二胺四亞甲基叉膦酸鈉　Dequest 2040

分子式：C6H12O12N2P4Na8　相對分子質量：612.13

本品是含氮有機多元膦酸，屬陰極型緩蝕劑，與無機聚磷酸鹽相比，緩蝕率高3~5倍。能與水混溶，無毒無污染，化學穩定性及耐溫性好，在200℃下仍有良好的阻垢效果。在水溶液中能離解成8個正負離子，因而可以多個金屬離子螯合，形成多個單體結構大分子網狀絡合物，鬆散地分散於水中，使鈣垢正常結晶被破壞。EDTMPS對硫酸鈣、硫酸鋇垢的阻垢效果好。二、質量指標 HG/T 3538-2003

EDTMPS用於循環水和鍋爐水的緩蝕阻垢劑、無氰電鍍的絡合劑、紡織印染行業螯合劑和氧漂穩定劑。在循環冷卻水中單獨投加時，一般劑量2~10mg/L。與HPMA按1:3比例復配后，可用於低壓鍋爐爐內水處理。EDTMPS也可與BTA、PAAS、鋅鹽等復配使用。

EDTMPS塑料桶包裝, 每桶25kg或根據用戶需要確定。貯於室內陰涼處，貯存期十個月。

五 安全防護

EDTMPS為弱鹼性，操作時注意勞動保護，應避免與皮膚、眼睛等接觸，接觸后應立即用大量清水沖洗。