Corrosion Inhibition Synergism between Lanthanum(Ⅲ) Ion and 8-Hydroxyquinoline for Zinc in Hydrochloric Acid
来源期刊:JOURNAL OF RARE EARTHS2002年第5期
论文作者:李学铭 唐丽斌 木冠南
Key words:rare earths; 8-hydroxyquinoline; corrosion inhibition synergism; zinc; hydrochloric acid;
Abstract: The effects of La3+ ion and chelate reagent 8-hydroxyquinoline on the corrosion rate of zinc in hydrochloric acid were investigated by using weight loss method and electrochemical method. It is found that in a specific concentration range of La3+ ion and 8-hydroxyquinoline, the obvious corrosion inhibition synergism is obtained. The mechanism of corrosion inhibition synergism was discussed on basis of adsorption theory.
李学铭1,唐丽斌1,木冠南1
(1.Department of Chemistry, Yunnan University, Kunming 650091, China)
Abstract:The effects of La3+ ion and chelate reagent 8-hydroxyquinoline on the corrosion rate of zinc in hydrochloric acid were investigated by using weight loss method and electrochemical method. It is found that in a specific concentration range of La3+ ion and 8-hydroxyquinoline, the obvious corrosion inhibition synergism is obtained. The mechanism of corrosion inhibition synergism was discussed on basis of adsorption theory.
Key words:rare earths; 8-hydroxyquinoline; corrosion inhibition synergism; zinc; hydrochloric acid;
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