EDTMPS

EDTMPS
Properties:
EDTMPS is nitrogenous organic polyphosphonic acid, a part of cathodic corrosion inhibitor.Its corrosion inhibition is 3~5 times better than that of inorganic polyphosphate.
EDTMPS 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℃.
EDTMPS can dissociate into 8 positive-negative ions, thus can chelate with many metal ions to form polymer reticulation complex, to destroy the normal crystallization of calcium scale.
EDTMPS shows better antiscale effects to calcium sulfate and barium sulfate.  

Specification:
items index
Appearance Clear yellow to umber transparent liquid
Active component (EDTMPS)%  30.0min
Organic phosphonic acid (asPO43- )% 10.0min
Phosphorous acid (as PO33-)% 5.0max
Phosphoric acid (asPO43- )% 1.0max
pH (1% water solution) 9.5-10.5
Density (20℃) g/cm3 1.25min
Chloride (as Cl-)% 3.0max