Product name:1-Hydroxy Ethylidene-1,1-Diphosphonic CAS NO.:2809-21-4 Acid .HEDP is an organophosphoric acid corrosion inhibit Product name:1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) Uses:HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In ...