DTPMPA is innocuous, easy to be dissolved in acid solution. DTPMPA has excellent scale and corrosion inhibition and good thermal tolerance ability. DTPMPA can inhibit the scale formation of carbonate, sulfate and phosphate. On situation of alkali environment and high temperature (above value="210" tcsc="0" unitname="℃" w:st="on">210℃) DTPMPA has better scale and corrosion inhibition effect than other organophosphines.