Inhibition of Copper Corrosion by Flavonoids in Nitric Acid

被引：16
作者：
Al-Qudah, Mahmoud A. [1 ]
机构：
[1] Yarmouk Univ, Fac Sci, Dept Chem, Irbid 21163, Jordan
来源：
E-JOURNAL OF CHEMISTRY | 2011年 / 8卷 / 01期
关键词：
Copper; Corrosion; Flavonoids; Inhibition; Quercetin-3,3 '-dimethylether; MILD-STEEL CORROSION; DERIVATIVES; DISSOLUTION; BEHAVIOR;
D O I：
10.1155/2011/543498
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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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收藏
页码：326 / 332
页数：7
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