| 氢氧化钠介质中三聚磷酸钠对铝的缓蚀作用及吸附热 |
| |
| 引用本文： | 韩成利. 氢氧化钠介质中三聚磷酸钠对铝的缓蚀作用及吸附热[J]. 高师理科学刊, 2009, 29(5): 69-72 |
| |
| 作者姓名： | 韩成利 |
| |
| 作者单位： | 齐齐哈尔大学,化学与化学工程学院,黑龙江,齐齐哈尔,161006 |
| |
| 摘 要： | 采用失重法研究了氢氧化钠溶液中三聚磷酸钠在不同温度和浓度下对铝的缓蚀作用,发现三聚磷酸钠在铝表面上的吸附是产生缓蚀作用的重要原因,且吸附规律服从Langmuir吸附等温式.用Sekine方法处理实验数据,获得了吸附过程相关的重要热力学参数.吸附过程是吸热过程,且熵值增大.随温度升高,吉布斯自由能减少,缓蚀率增大.
|
| 关 键 词： | 铝 氢氧化钠 三聚磷酸钠 吸附 缓蚀 |
Studies on corrosion inhibition and STPP of resorcinol aluminum on pure aluminium in sodium hydroxide |
| |
| HAN Cheng-li. Studies on corrosion inhibition and STPP of resorcinol aluminum on pure aluminium in sodium hydroxide[J]. Journal of Science of Teachers＇College and University, 2009, 29(5): 69-72 |
| |
| Authors: | HAN Cheng-li |
| |
| Affiliation: | HAN Cheng-li(School of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China) |
| |
| Abstract: | The corrosion inhibition of STPP on pure aluminiun in sodium hydroxide was investigated with different temperatures and different concentration of STPP by weight-loss method.It is shown by the result that the adsorption of STPP on the surface of pure aluminium is the important reason resulted from corrosion inhibition and that the rule of adsorption conforms with langmuir’s isotherm.The experimental datum are treated by the Sekine method and the correlative thermodynamics parameters are obtained.The adsorption process is the endothermic process and the entropy is increased with the rapid increasing of the temperature,the Gibbs free energy is steadily decreased and at the same time,the inhibition efficiency is increased. |
| |
| Keywords: | pure alminium sodium hydroxide STPP adsorption corrosioninhibition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
