DTPMPA is innocuous, easy to be dissolved in acid solution. DTPMPA is an excellent inhibitor for mineral deposits (for example CaCO3, BaSO4, SrSO4) .and a powerful complexing agent. DTPMPA inhibits scale formation at extremely low (ppm) dosage levels, sub-stoichiometric concentrations calculated on hardness of water. On situation of alkali environment and high temperature (above 210℃) , wide range of PH Values, DTPMPA has better scale and corrosion inhibition effect than other organophosphines.