engleski

AMINOTRIS(METHYLENEPHOSPHONIC ACID) AND SODIUM GLUCONATE AS INHIBITORS OF CARBON STEEL CORROSION IN 3.5 % NACL SOLUTION

The effect of combined action of aminotris (methylenephosphonic acid) (ATMP) and sodium gluconate (SG) on the corrosion inhibition of carbon steel (RSt 37-2) in 3.5 % NaCl solution has been studied using Tafel polarization and microscopy techniques. The results show that substantial corrosion inhibition using mixtures of ATMP and SG in low concentrations can be obtained. SG acts predominantly as anodic inhibitor whereas ATMP acts as cathodic inhibitor. Using both inhibitors predominant mechanism of cathodic inhibition is observed.

carbon steel, corrosion inhibitors, sodium gluconate, aminotris (methylenephosphonic acid), 3.5 % NaCl

nije evidentirano