How to Clean Platinum Electrodes

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How to Clean Platinum Electrodes
Sanitise lab items regularly to keep tests from becoming contaminated. (chemical laboratory image by Oleg Mitiukhin from Fotolia.com)

Platinum electrodes are used in laboratories for quantitative electrochemical analysis. Primarily, they allow for the agitation of electrolytes. Using a rotating electrode will save time in this process. Cylindrical electrodes are made of wire mesh that consist of iridium alloy to give them strength. They can often go long periods of time without needing any maintenance. However, they do occasionally need to be cleaned.

Skill level:
Easy

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Things you need

  • Distilled water
  • Protective gloves (latex or latex-free rubber)
  • Cloth, gauze or cotton swab
  • Rubbing alcohol

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Instructions

  1. 1

    Remove the electrode from the electrolyte. Gently pull them apart by hand.

  2. 2

    Rinse the platinum electrode with distilled water.

  3. 3

    Cleanse the platinum electrode with rubbing alcohol. Rub the electrode with a soft cloth or gauze saturated in rubbing alcohol. Wear protective gloves if your skin is sensitive to alcohol.

  4. 4

    Dry the electrode in a stream of warm air that is no higher than 100 degrees Celsius. Use the recommended drying device for your platinum electrodes.

Tips and warnings

  • Never dry the electrode with a shaking motion. This can cause the stem of the electrode to bend over time.

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