摘要
式中V、V_0分别为金属在有、无缓蚀剂介质中的腐蚀速度。AntropoV等研究过许多种吸附型缓蚀剂,发现在一定浓度范围内,这类缓蚀剂对铁的酸腐蚀的抑制系数γ_i与浓度之间存在简单的函数关系:
The corrosion inhibition of quinoline, thiourea and benzyltriphenyl phosphonium bromide for carbon steel in acid medium have been investigated by weight loss method.The following relationship between inhibition coefficient γi (ratio of the corrosion velocity without inhibitor to that with inhibitor) and concentration of inhibitor (C_i) was found: logγ_i=α_i+β_ilogC_i. In the case of mixed inhibitor systems the over all inhibition coeffiieient γ: can be expressed as:logγ_3=α_3+β_3log C_1(concentration of the second inhibifor=constant) and logγ3=logγ1+blogγ_2(b=β_3/β_1). When b>1, the inhibitors showed a synergistic inhibition effect.
出处
《应用化学》
CAS
CSCD
北大核心
1992年第3期63-65,共3页
Chinese Journal of Applied Chemistry
关键词
钢
缓蚀作用
喹啉
硫脲
BPB
corrosion cabon steel, inhibition, quinoline, thiourea, benzyltriphenyl phosphonium bromide
