Product Name

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

Basic Information

CAS No:1429-50-1
Molecular Formula:C6H20N2O12P4
Molecular Weight:436.124
Remarks:Factory direct sales

Ethylenebis(nitrilodimethylene)tetraphosphonic Acid Properties




White Powder



Melting point/℃215
density(Kg/m³)2000(rough estimate)
refractive index1.622
Flash point/℃485.2
storage temproom temperature

Ethylenebis(nitrilodimethylene)tetraphosphonic Acid USES

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

Packing: 25Kg,100Kg,200Kg,1000Kg/Drum

Ethylenebis(nitrilodimethylene)tetraphosphonic Acid storage

  1. Store barreled products in a cool, ventilated warehouse; keep away from

fire and heat sources. The warehousing temperature does not exceed 30 ℃, and the relative

humidity does not exceed 80%. Keep the container sealed; products should be stored separately

from oxidants, reducing agents, etc., and should not be mixed; be equipped with fire-fighting

equipment of appropriate variety and quantity; the storage area should be equipped with

equipment for emergency treatment of leakage and suitable containment materials;

  1. Store in a special storage tank; keep away from fire and heat sources; there is fire-fighting foam

for a fire emergency, and the tank area is equipped with equipment for the emergency treatment of


  1. Shelf life: The shelf life of this product is 6 months.

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