How to Mix Potassium Permanganate

Due to potassium permanganate's ability to burn organic chemicals, this oxidizing agent is commonly used in aquaculture to combat infection in exotic fish, as well as in water conditioning systems and the plumbing industry. Only available in the form of dry crystals, potassium permanganate must be mixed to the proper concentration for its intended purpose. Use caution, and wear protective gear to prevent injury when mixing a concentration of this chemical.

Things You'll Need

  • Protective eye wear
  • Gloves
  • Protective clothing
  • Potassium permanganate crystals
  • Solution to be oxidized
  • Scale
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Instructions

    • 1

      Put on protective eye wear, gloves and clothing before mixing potassium permanganate. This chemical can leave skin with a brown stain that can take days to disappear.

    • 2

      Calculate the amount of potassium permanganate needed to treat a large volume of water. This calculation is applicable for either plumbing, water conditioning systems or aquaculture needs. The formula is Amount of Chemical = Volume X Conversion Factor X Treatment Rate. For water sources measured in gallons, the conversion factor is 0.0038. For example:

      Grams Needed = (250 gallons) X (0.0038) X (2 mg/L)

      The amount of potassium permanganate required in this example is 1.9 grams.

    • 3

      Measure your ingredients, and calculate the amount of chemical needed. Use your scale to measure out the correct amount of potassium permanganate.

    • 4

      Add the potassium permanganate crystals to your solution with caution. Ensure the chemical is completely dissolved to get the correct concentration.

    • 5

      Store the remaining potassium permanganate crystals in a cool, dark place. Dispose of protective gear. Finish by washing your hands and arms up to the elbows to ensure no chemical residue remains on the skin.