Effect of Cl^-ion on Anodic Iron Dissolution in H_2S-Containing Sulfuric Acid Solutions

作     者：Li Jing YAN Lin NIU Hat Chao LIN Wei Tao WU Shang Zhang LIU(Institute of Corrosion and Protection of Metals, State Key Laboratory for Corrosion and Protection, Chinese Academy of Sciences, Shenyang 110015Department of Chemistry, Liaoning University, S 

作者机构：Chinese Acad Sci Inst Corros & Protect Met State Key Lab Corros & Protect Shenyang 110015 Peoples R China Liaoning Univ Dept Chem Shenyang 110036 Peoples R China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1998年第9卷第10期

页      面：945-948页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

主　　题：iron anodic dissolution Cl H_2S, CNDO/2 

摘      要：The effect of Cl- ion on the anodic iron dissolution in H2SO4 solutions containing H2S has been studied by using electrochemical polarization curve measurements. The competitive adsorption for Cl- and HS- ions at an anodic potential has been calculated using the CNDO/2method. The results show that a ceftain concentration of the Cl- ion can be adsorbed steadily and inhibit the anodic reaction of iron catalyzed by HS-. However, when the Cl- ion reaches the saturation adsorption, it begins to promote the anodic reaction of iron due tO the increased negative charge of iron atoms.