Corrosion Inhibition Synergism between Lanthanum(Ⅲ) Ion and 8-Hydroxyquinoline for Zinc in Hydrochloric Acid  

作　　者：木冠南 唐丽斌 李学铭 

出　　处：《Journal of Rare Earths》2002年第5期502-506,共5页稀土学报（英文版）

基　　金：ProjectsupportedbytheAppliedBasicResearchFoundationoftheScienceandTechnologyCommissionofYunnanProvince( 2 0 0 0E0 0 1 7M )

摘　　要：The effects of La 3+ 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 La 3+ ion and 8 hydroxyquinoline, the obvious corrosion inhibition synergism is obtained. The mechanism of corrosion inhibition synergism was discussed on basis of adsorption theory.The effects of La 3+ 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 La 3+ ion and 8 hydroxyquinoline, the obvious corrosion inhibition synergism is obtained. The mechanism of corrosion inhibition synergism was discussed on basis of adsorption theory.

关 键 词：rare earths 8  hydroxyquinoline corrosion inhibition synergism ZINC hydrochloric acid 

分 类 号：TG172[金属学及工艺—金属表面处理]