Studies On The Synthesis Of 1H-1,2,4-triazol-3-amine- Alkyl-phosphonic Acid And Corrosion Inhibition For A₃ Steel And Copper

The phosphonic acid is the potential corrosion inhibitor because of it's obvious and wide corrosion ability.A series of 1H-1,2,4-triazol-3-amine- alkyl-phosphonic Acid have been synthesized from the Mannich reaction of triazole, different aldehydes and phosphorous acid. And yield , physical and chemical properties was introduced.These compounds have been characterized by IR, ¹HNMR, ³¹PNMR , MS and elemental analysis.The reaction conditions and methods also have been analyzed systematically. The inhibition efficiencies measured from potentiodynamic polarisation, and weight-loss experiments are all internally consistent with each other. The effect of corrosion inhibition on the concentration , pH, time, and the composition with sodium molybdate and BTA were also discussed in the paper.target compounds:...