物理化学学报 >> 2007, Vol. 23 >> Issue (01): 21-26.doi: 10.3866/PKU.WHXB20070105

研究论文 上一篇    下一篇

碱性介质中BIT, BIOHT和BIMMT对铜的缓蚀性能和吸附行为

王献群;刘瑞泉;朱丽琴;宫建伟   

  1. 新疆大学化学化工学院, 乌鲁木齐 830046
  • 收稿日期:2006-06-07 修回日期:2006-07-28 发布日期:2007-01-08
  • 通讯作者: 刘瑞泉 E-mail:liu.rq@163.com

Inhibition Action and Adsorption Behaviors of BIT, BIOHT and BIMMT on Copper in Alkaline Medium

WANG Xian-Qun;LIU Rui-Quan;ZHU Li-Qin;GONG Jian-Wei   

  1. College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, P. R. China
  • Received:2006-06-07 Revised:2006-07-28 Published:2007-01-08
  • Contact: LIU Rui-Quan E-mail:liu.rq@163.com

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摘要： 采用失重法和电化学方法研究了BIT, BIOHT和BIMMT三种席夫碱基四唑类化合物对铜在质量分数为5%的NaHCO3水溶液中的缓蚀性能和吸附行为. 结果表明, 在NaHCO3水溶液中三种化合物对铜均有较好的缓蚀作用, 三种化合物的缓蚀性能大小顺序为BIMMT>BIOHT>BIT. 三种化合物在铜表面上的吸附过程为放热过程, 其在铜表面上的吸附行为服从Langmuir吸附等温式, 属于物理吸附.

关键词: 缓蚀剂, 铜, 四唑, NaHCO3

Abstract: The inhibition action and adsorption behavior of three Schiff base tetrazole compounds of BIT, BIOHT, and BIMMT on copper in aqueous NaHCO3 (mass fraction 5%) solution were investigated by means of weight loss and electrochemical techniques. The results indicated that the three compounds have good corosion inhibition for copper in NaHCO3 solution. The inhibition efficiency of the three compounds was found to decrease as follows: BIMMT>BIOHT>BIT. The adsorption processes were exothermic reaction and belong to physical adsorption, and the adsorption behavior followed Langmuir isotherm.

Key words: Inhibitor, Copper, Tetrazole, NaHCO3