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Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium
EDTMPS
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CAS No.: 1429-50-1
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Molecular Formula: C6H12O12N2P4Na8
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Synonyms: EDTMP, EDTMPA, EDTPO, Dequest 2040 |
Molecular Weight: 612.13 |
Properties:
EDTMPS is nitrogenous organic polyphosphonic acid, a part of cathodic corrosion inhibitor. The 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 200℃. It dissociates into 8 positive-negative ions, and 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.
Specification:
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Items |
Index |
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Appearance |
Clear yellow to umber transparent liquid |
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Active component (EDTMPS)% |
28.0 min |
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Organic phosphonic acid (asPO43-)% |
10.0 min |
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Phosphorous acid (as PO33-)% |
5.0 max |
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Phosphoric acid (as PO43- )% |
1.0 max |
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pH (1% water solution) |
9.5-10.5 |
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Density (20℃) g/cm3 |
1.25 min |
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Chloride (Cl-)% |
3.0 max |
Usage:
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.
Package :
200L plastic drum, IBC(1000L), as per requirement.