量热法研究氨基硫脲对铝在盐酸溶液中的缓蚀作用

Study on Corrosion Inhibition of Thiosemicarbazido on Aluminium in hcl Solution by Thermometric Method

用量热法研究了氨基硫脲对铝在盐酸溶液中的缓蚀作用 .讨论了温度与缓蚀剂的浓度对缓蚀率的影响 ,发现氨基硫脲对铝的缓蚀作用类型属于置换型的吸附 ,求得平均吸附热为 33.8kJ/mol。

The corrosion of aluminium in HCl solution has been studied in the absence or existence of TSC with the thermometric method.The influence of temperature and concentration of TSC on the inhibition efficiency has been discussed.The inhibition of TSC for aluminium was found to be the displacement adsorption.The mean enthalpy of adsorption which had been calculated from experimental data was 33.8?kJ/mol.The adsorption isotherm approximately followed langmuir isotherm equation.