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用分光光度法研究了铝在含20%(体积分数)乙醇的0.2~1.2mol/L氨基磺酸水溶液中,在53~65℃温度下的腐蚀速率.根据试验数据,利用Mathur提出的经验公式和Arrhenius公式分别计算出有关的动力学参数k,B,A和E,并把这些动力学参数与在氨基磺酸水体系中腐蚀的动力学参数进行了比较.发现了由于加入少量乙醇导致腐蚀速率明显降低,在上述两体系中腐蚀反应速率受氨基磺酸浓度影响的结果也存在有差异.
The corrosion rate of aluminum in 0.2 ~ 1.2mol / L sulfamic acid aqueous solution containing 20% (volume fraction) ethanol at 53 ~ 65 ℃ was studied by spectrophotometry. According to the experimental data, the kinetic parameters k, B, A and E are calculated respectively by using the empirical formula proposed by Mathur and the Arrhenius formula, and these kinetic parameters are compared with the kinetic parameters of corrosion in sulfamic acid water system Compare It was found that there was also a difference in the results of the corrosion reaction rate affected by the sulfamic acid concentration in both systems due to the marked decrease of the corrosion rate due to the addition of a small amount of ethanol.