|
Indirect Amperometry of Free Corrosion as a Method for Its Laboratory Investigation |
|
15.12.2008 г. |
|
Indirect Amperometry of Free Corrosion as a Method for Its Laboratory Investigation G. N. Markos’yan Russian Federation Scientific Center “Karpov Research Institute of Physical Chemistry,”
ul. Vorontsovo Pole 10, Moscow, 103064 Russia e-mail:
Этот e-mail защищен от спам-ботов. Для его просмотра в вашем браузере должна быть включена поддержка Java-script
Received December 18, 2003 Abstract — A formerly developed electrochemical cell able to continuously measure the oxygen corrosion rate of a metal through the absorbed oxygen quantity is described. By the example of various metals and alloys, the cell is shown to be applicable to clarifying the effect of various factors on their corrosion rate in acidic aqueous solutions. The rate constants are also determined for a series of homogeneous chemical reactions consuming oxygen. Peculiarities of hydrogenation and dehydrogenation processes under cathodic polarization conditions with access for air are investigated. It is shown that substituting chlorine for oxygen enables one to investigate chlorination of rubbers and chlorine corrosion of a great many metals and alloys.
|