Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436

Demonstrate the decomposition of water in simple but colorful fashion on an overhead projector using just a 9-volt battery and alligator clips. No need for expensive power supplies or fancy glassware. Color changes produced in universal indicator solution reveal the pH changes that occur at the positive and negative electrodes as the reaction proceeds.


  • Decomposition Reaction
  • Oxidation & Reduction
  • pH
  • Electrolysis