Redox products with inert electrodes?

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Discussion Overview

The discussion centers on the oxidation-reduction reactions occurring at inert electrodes, specifically platinum or silver-coated electrodes, when a direct current (DC) voltage is applied in a saline solution of potassium chloride (KCl).

Discussion Character

  • Exploratory, Technical explanation

Main Points Raised

  • One participant inquires about the specific redox reactions at inert electrodes in a saline solution when a DC voltage is applied.
  • Another participant suggests that chlorine is produced at the positive electrode and hydrogen at the negative electrode.
  • It is noted that inert electrodes primarily serve to transfer charge without undergoing any change themselves during the reactions.
  • A participant expresses gratitude for the confirmation of this point regarding inert electrodes.

Areas of Agreement / Disagreement

Participants appear to agree on the basic reactions expected at the electrodes and the role of inert electrodes, but the discussion does not delve into detailed mechanisms or alternative viewpoints.

Contextual Notes

The discussion does not address potential variations in reactions based on concentration, temperature, or other conditions that might affect the outcomes.

Who May Find This Useful

Individuals interested in electrochemistry, particularly those studying redox reactions and the behavior of inert electrodes in electrolytic solutions.

somasimple
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TL;DR
What are the oxidation-reduction reactions that are produced at the electrodes when they are considered inert (platinum or silver coated)?
Hello,
What are the oxidation-reduction reactions that are produced at the electrodes when they are considered inert (platinum or silver coated)?
Let's take a simple example of a saline solution of KCl and apply a DC voltage between the two electrodes.
Thank you in advance.
 
Chemistry news on Phys.org
OK,
It seems elementary: Chlorine on one side (positive electrode) and hydrogen on the negative electrode.
 
Yes. Inert electrode just transfers charge and doesn't change itself in the process.
 
Thanks for the confirmation, Borek.
 

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