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Abstract The authors attempt to explore the corrosion tendency of metals in Fuzhou geothermal water with fhe aid of potential-pH diagram from the view of thermodynamics. This article reports the study of copper-geothermal water system. A programme has been worked out for using BASIC language to calculate the high temperature thermodynamic data on APPLE Ⅱ microcomputer, and the E-pH diagram of this system has been drawn with DXY-800 plotter. Simultaneously, the practical corrosion potential of copper in Fuzhou GW2 well geothermal water has been determined. The results show that in this water, a Cu_2O film probably grows on the surface of copper when the temperature is below 318K, and a CuO film when the temperature is above 318K. Both are situated in the passive. region.
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Received: 25 April 1987
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[1] 梁春馀;王魁,化学通报,(5) ,44(1977)
[2] 易宪武,昆明化工学院学报,(3) ,58(1982)
[3] Griss, C. M.; et. al., J. Am. Chem. Soc., 88, 5385(1964)
[4]#12
[5] Latimer, W. M., Oxidation Potentials, 2nd Edition, New York, 361～363(1953)
[6] Connick, R. E.; Powell, R. E, J. Chem. Phys., 21, 2206(1953)
[7] 物理化学数据简明手册(第二版),周振华译,上海科技出版社,916(1959)
[8] Bianchi, G.; Longhi, P., Corrosion Science, 13, 853(1973)
[9] 黄据谦.中南矿冶学院学报,(2) ,48(1981)
[10] Pourbaix, M., Lectures on Electrochemical Corrosion, New York, 305(1973) |
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