【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。更多还原

【Abstract】 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更多还原