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Ethylenebis(nitrilodimethylene)tetraphosphonic Acid Cas 1429-50-1

Assay: 96.0% min

Appearance: White crystal powder

Package: 25kg/bag, customers’ requirement

Capacity: 300MT/year

Sample: Available

related documents:

  • COA of EDTMPA CAS 1429-50-1
  • TDS of EDTMPA CAS 1429-50-1



Ethylenebis(nitrilodimethylene)tetraphosphonic acid Quick Details

Product name: Ethylenebis(nitrilodimethylene)tetraphosphonic acid; EDTMPA

CAS: 1429-50-1

Molecular formula: C6H20N2O12P4

Molecular weight: 436.12

Appearance: White crystal powder

Ethylenebis(nitrilodimethylene)tetraphosphonic acid Typical Properties

Items Index
Appearance White crystal powder
Active acid (as EDTMPA)% 96.0 min
Total phosphonic acid(as PO43-)% 82.0 min
Chloride (Cl) % 0.1 max
Moisture % 2.0 max
Fe, mg/L 5.0 max
pH(1% water solution) 2.0 max


Ethylenebis(nitrilodimethylene)tetraphosphonic acid Usage

EDTMPA is white crystal powder at room temperature, with melting point 215-217℃, hard to be dissolved in water, the solubility is less that 5% at room temperature, easy dissolved in ammonia.EDTMPAhas strong metal ion chelating capacity, whose chelating constant with cuprum ion is larger than that of EDTA.

EDTMPA has high capacity for chelating metal ions. The complex constant with Cu is the largest in all chelating agents including EDTA.EDTMPAis a kind of high-pure grade reagent and innocuous, it can be used as detergent in semiconductor chip to prepare integrated circuit, as carrying agent for radioelement in medical industry, and as agent for inspection and therapy. The chelating capacity ofEDTMPAlargely exceed that of EDTA and DTPA, and can replace EDTA for chelating agent at almost any situation.

Ethylenebis(nitrilodimethylene)tetraphosphonic acid Packaging and Storage

25kg/bag, customers’ requirement. Storage for one year in shady room and dry place.

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