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EDTMPS 30% CAS 1429-50-1
Water treatment EDTMPS 30%
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    1,000 kgs

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  • Product Details
Ethylene diamine tetra (methylene phosphonic acid) sodium EDTMPS 30% (CAS 1429-50-1) 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.


Appearance                                             Clear yellow to umber transparent liquid

Active component (EDTMPS)%                 30.0min
Organic phosphonic acid (asPO43- )%    10.0min
Phosphorous acid (as PO33-)%               5.0max
Phosphoric acid (asPO43- )%                  1.0max
pH (1% water solution)                           9.5-10.5
Density (20℃) g/cm3                               1.25min
Chloride (Cl-)%                                        3.0max


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.



250kg/drum; 20mt/20''container

1250kg/IBC drum,18drums/20”container


Stored in cool and airy place; away from fire and heat; handle with care; no breakage, avoid leakage.It is valid for 1 years under proper condition.

EDTMPS is classified as Dangerous Good for transport.
Please refer to MSDS for more information about Safety,Storage and Transportation.
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