polysaccharide with unlimited number of industrial applications. In this study, guar gum was
evaluated as a natural inhibitor of carbon steel (CS) corrosion in 2 MH 3 PO 4 solution. The
characteristic effect of guar gum on the steel corrosion was studied at concentration ranges
from 0.1 to 1.0 g/L at 298–328 K by weight loss and electrochemical methods. Obtained
results showed that, the inhibition efficiency (η%) of guar gum decreased slightly when the …