Inhibition of Copper Corrosion by Flavonoids in Nitric Acid | Zendy

Mahmoud A. AlQudah | Zendy

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Inhibition of Copper Corrosion by Flavonoids in Nitric Acid

Author(s) -

Mahmoud A. AlQudah

Publication year - 2010

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2011/543498

Subject(s) - chemistry , copper , dissolution , nitric acid , monolayer , metal , corrosion , inorganic chemistry , erosion corrosion of copper water tubes , nuclear chemistry , organic chemistry , biochemistry

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

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