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Aldon Rainbow Electrolysis Demonstration

Item #: 2039830
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Study oxidation-reduction, electrolysis and acid-base reactions as Universal Indicator is added to an aqueous sodium sulfate solution. When two carbon electrodes are connected to a battery and placed in the solution, a rainbow of colors forms as the water is electrolyzed. There are enough materials to complete the demonstration 5 times.
  • 50 milliliter Sodium Sulfate Solution, 1M (Molar)
  • 6 milliliter Universal Indicator
  • 1 Red Connecting Wire
  • 1 Black Connecting Wire
  • 12 Carbon Electrodes
  • 2 Petri Dishes