EDTMPA has high capacity for chelating metal ions. The complex constant with Cu is the largest in all chelating agents including EDTA. EDTMPA is 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.


Item Index
Appearance Clear amber liquid
Active acid (as EDTMPA)% 48.0-52.0
Total phosphonic acid (as PO43-)% 39.0-41.0
Chloride (Cl-) % 0.1 max
Density 1.30-1.40
pH (1% water solution) 2.0 max

The chelating capacity of EDTMPA largely exceed that of EDTA and DTPA, and can replace EDTA for chelating agent at almost any situation.

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

EDTMPA; EDTMP; EDTMP(A); Ethylene Diamine Tetra (Methylene Phosphonic Acid); EDTPO