硫酸介质中氯化镧与阴离子表面活性剂十二烷基苯磺酸钠(SBDS)对锌的缓蚀协同效应  

Corrosion Inhibition Synergetic Effect of Lanthanum Chloride with Dodecyl Benzene Sulfonic Acid Sodiumsalt(SBDS) for Zinc in Sulphuric Acid Medium

作　　者：木冠南[1] 唐丽斌[1] 刘光恒[1] 

机构地区：[1]云南大学化学系,云南昆明650091

出　　处：《稀土》2001年第4期78-80,共3页Chinese Rare Earths

基　　金：云南省科委应用基础研究基金 (2 0 0 0 E0 0 17M)

摘　　要：用失重法研究了硫酸介质中稀土镧 ( )离子和阴离子表面活性剂十二烷基苯磺酸钠 (SBDS)在硫酸介质中对锌的缓蚀协同效应。发现 L a3+ 在低浓度下有增蚀作用 ;SBDS对锌则有一定的缓蚀作用 ,但最大缓蚀率仅有 35 %。实验结果亦表明 SBDS与 L a3+ 对锌表现出强烈的缓蚀协同效应。The corrosion inhibition synergetic effect of La 3+ with dodecyl benzene sulfonic acid sodiumsalt(SBDS) for zinc in sulphuric acid medium was studied by using weight-loss method It is found that when the concentration of La 3+ is low, the corrosion is promoted SBDS has inhibitive effects on zinc corrosion, the maximum inhibition efficiency of SBDS is only 35% Experimental results show that La 3+ with SBDS have strong corrosion efficiency for zinc

关 键 词：硫酸 镧(Ⅲ)离子 十二烷基苯磺酸钠 缓蚀协同效应 吸附 表面活性剂 渗稀土 防腐 耐蚀性 

分 类 号：TG174.444[金属学及工艺—金属表面处理]