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Zaozhuang Jialu Chemical Co., Ltd.

Water Treatment, Edtmps, Dequest 2040 manufacturer / supplier in China, offering Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium, Factory Directly Sell Carbon Black for Rubber, Amino Trimethylene Phosphonic Acid ATMP with SGS Certificate and so on.

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Supplier Homepage Product Corrosion Inhibitor Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium

Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium

FOB Price: US $690-740 / Ton
Min. Order: 20 Tons
Min. Order FOB Price
20 Tons US $690-740/ Ton
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Port: Qingdao, China
Transport Package: Plastic Drum, IBC
Payment Terms: L/C, T/T, D/P, Western Union

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Basic Info
  • Model NO.: EDTMPS
  • Certification: REACH, ISO, MSDS
  • Color: Yellow
  • Type: Industrial Circulating Water Treatment Agent
  • Payment Advantage: Can Accept Usance L/C
  • Trademark: JIALU
  • Origin: China
  • Acid-Base Property: Alkaline Surface Disposal Agent
  • Environmental Protection: Yes
  • Appearance: Liquid
  • Delivery Deadline: Within 15days After Receive Your Prepaid
  • Shipemnt Term: Fob, CNF, CIF
  • Specification: 200L, 1000L
  • HS Code: 2931901990
Product Description
                   Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium (EDTMPS)

CAS No. 1429-50-1                             Synonym: Dequest 2040
Molecular Formula: C6H12O12N2P4Na8        Molecular weight: 612.13


    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.
    EDTMPS shows excellent scale inhibition ability under temperature 200ºC. It dissociates 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. It has better antiscale effects to calcium sulfate and barium sulfate.


AppearanceClear yellow to umber transparent liquid
Active component (EDTMPS) %28.0 min

Organic phosphonic acid (asPO43- ) %

10.0 min

Phosphorous acid (as PO33- ) %

5.0 max
Phosphoric acid (asPO43- ) %1.0 max
pH (1% water solution)9.5-10.5
Density (20ºC) g/cm31.25 min
Chloride (Cl- ) %3.0 max

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