硫酸中环已基炔氧甲基胺乙酸盐对铁的缓蚀及与Cl^-的协同作用

Inhibition of the N,N-Dipropynoxy Methyl Amine Acetate on Pure Iron in Sulfuric Acid Solution and the Synergism with Cl^-

采用稳态极化曲线技术和交流阻抗测试技术研究了环己基二炔氧甲基胺乙酸盐在硫酸介质中对铁的缓蚀机理及与Cl－的协同作用。研究结果表明，其缓蚀机理为混合抑制负催化效应，缓蚀剂分子可能参与了反应。缓蚀剂分子与Cl－在对铁的缓蚀方面有明显的协同效应，缓蚀作用和协同效应的大小与它们的浓度有关。缓蚀剂存在着浓度极值现象。

The inhibition mechanism of the N,N-dipropynoxy methyl amine acetate on pure iron in su'furic acid solution and the synergismwith Cl- was studied by static polarization curve technique and electrochemical impedance spectrum technique. Results showed that itwas the mixed deactivation mechanism. Moleculars of the inhibitor had a hand in the reaction process and had distinct inhibition synergism with Cl- on surface of the pure iron. The efficiences of inhibition and synergism were related with the concentration of inhibitor.With the increase of inhibitor concentration, the extreme value of inhibition was observed.