盐酸介质中十二烷基磺酸钠和硝酸钠对铝的缓蚀协同效应  

SYNERGISTIC CORROSION INHIBITION EFFECT OF DODECYL SULPHONIC ACID SODIUM SALT AND SODIUM NITRATE ON ALUMINUM IN HYDROCHLORIC ACID SOLUTION

作　　者：袁朗白[1] 刘晓轩[1] 李向红[1] 木冠南[1] 

机构地区：[1]云南大学化学系,昆明650091

出　　处：《腐蚀与防护》2003年第9期376-377,394,共3页Corrosion & Protection

基　　金：国家自然科学基金资助项目(50261004);云南省自然科学基金资助项目(200E0017M)

摘　　要：用失重法研究了在盐酸介质中阴离子型表面活性剂十二烷基磺酸钠(DSASS)和硝酸钠对铝的缓蚀协同效应,发现30℃和40℃时,在一定浓度范围内,两者产生了明显的缓蚀协同作用,缓蚀率可达90%左右。根据此实验结果,讨论了产生协同效应的原因。The synergistic effect of dodecyl sulphonic acid sodium salt (DSASS) and sodium nitrate was investigated by using weightloss method. A marked inhibition synergism between them was found with suitable concentrations at 30℃ and 40℃, the maximum value of percentage inhibition efficiency was about 90%. According to the experimental results, the reason of producing synergistic effect was discussed.

关 键 词：铝 盐酸 十二烷基磺酸钠 硝酸钠 缓蚀协同效应 

分 类 号：TG174.42[金属学及工艺—金属表面处理]