Inhibition Action and Adsorption Behavior of POTAS and PDTAS on Copper in Alkaline Medium

ZHANG Xiu-Juan, 新疆大学化学化工学院, 乌鲁木齐 830046, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, P. R. China, LIU Rui-Quan, WANG Xian-Qun
2008 Wuli huaxue xuebao  
Twopyrazolonecompounds,POTASandPDTAS,weresynthesizedandtheirinhibitionactionand adsorptionbehavioroncopperinaqueousNaHCO 3 (massfraction5%)solutionwereinvestigatedbymeansofmass lossandelectrochemicaltechniques.Itwasshowedthatthetwocompoundshadgoodcorrosioninhibitionforcopper inNaHCO 3 solution.Theinhibitionefficiencyofthetwocompoundswasfoundtodecreaseasfollows:POTAS> PDTAS.BothPOTASandPDTASweremixed鄄typeinhibitors.Theresultsofexperimentrevealedthattheadsorption
more » ... ewasmonolayeradsorption.Theadsorptionprocesseswereexothermicreactionandbelongto physicalabsorption.
doi:10.3866/pku.whxb20080227 fatcat:ksb3wuihknaxtnagli4gxu75l4