| Copper-copper(ii) Sulfate Electrode |
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Information AboutCopper-copper(ii) Sulfate Electrode |
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It is used for measuring Electrochemical Potential and is the most commonly used reference electrode for testing Cathodic Protection Corrosion control systems. The corresponding equation can be presented as follow: :Cu2+ + 2e- → Cu0(metal) This reaction characterized by fast electrode kinetics, meaning that a sufficiently high current can be passed through the electrode with the 100% efficiency of the redox reaction ( Dissolution of the metal or cathodic Deposition of the copper-ions). The Nernst Equation below shows the dependence of the potential of the copper-copper(II) sulfate electrode on the Activity or Concentration copper-ions: Commercial reference electrodes consist of a plastic tube holding the copper rod and saturated solution of copper sulfate. A porous plug on one end allows contact with the copper sulfate Electrolyte . The copper rod protrudes out the tube. A Voltmeter negative lead is connected to the copper rod. The potential of a copper copper sulfate electrode is -0.318 Volt with respect to the Standard Hydrogen Electrode . APPLICATIONS
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