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用失重法研究了菜籽饼提取液,对铝在盐酸溶液中的缓蚀作用,发现该提取液中的缓蚀组分,在盐酸溶液中的铝表面上产生了吸附,且服从Langmuir吸附等温式。求出吸附热为68kJ.mol~(-1),认为化学吸附是产生缓蚀作用的主要原因。
The weight loss method was used to study the corrosion inhibition effect of rapeseed cake on the aluminum in hydrochloric acid solution. It was found that the corrosion inhibition component in the extract was adsorbed on the aluminum surface in hydrochloric acid solution, and was subjected to Langmuir adsorption isotherm formula. Find the adsorption heat 68kJ.mol ~ (-1), that the chemical adsorption is the main cause of corrosion inhibition.