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| Address | P.O. Box 219 Batavia, IL 60510 |
| Phone | 800-452-1261 |
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| flinn@flinnsci.com |
DC91413
Price: FREE
Add a pink cobalt chloride solution to a colorless solution containing potassium sodium tartrate and hydrogen peroxide and watch as a very obvious green-colored complex forms. As the reaction ends, the solution will return to its original pink color— indicating that the cobalt chloride catalyst is not used up in the reaction.
