EDTMPA (Solid) (Ethylene Diamine Tetra (Methylene Phosphonic Acid) )

(via rita at thwater dot com to make inquiry)

CAS 1429-50-1                                              
Dequest: 2040
EDTMPA is white crystal powder at room temperature, with melting point 215-217centigrade, hard to be dissolved in water, the solubility is less that 5percent at room temperature, easy dissolved in ammonia. EDTMPA has 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. 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. The chelating capacity of EDTMPA largely exceed that of EDTA and DTPA, and can replace EDTA for chelating agent at almost any situation.  

Specification:
Appearance: White crystal powder
Active acid : 95.0percent min
Total phosphonic acid(as PO43-):  82.0percent  min
Dryness weight loss: 2.0 percent max
Fe ppm: 5 max
Cl percent: 0.1 max
pH(1percent solution) :2.0 max
Our company can produce 99percent (chromatograph purity) and high purity product on demand of clients.

Package and Storage:
25kg inner liner polyethylene (PE) bag, outer plastic woven bag, with agreement with export environment requirement, or confirmed by clients. Storage for one year in room shady and dry place