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A study has been made to investigate the effect of some substituted flavonoids on copper dissolution in 2.0 M HNO3 for 4.0 hours at different temperatures by the weight loss method. Percentage of inhibition increases as concentration of the flavonoids increases and reaches a maximum value, due to the formation of a monolayer film on the surface of the metal. 92% Inhibition was observed in some of these flavonoids. As temperature increases, percentage of inhibition decreases. Energy of activations were deduced and discussed

Inhibition of Copper Corrosion by Flavonoids in Nitric Acid