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Oscillating Reactions: The Traffic Light


Are chemical reactions reversible?

  • Redox reaction illustrates chemical equilibrium
  • Easy way for students to see chemical reactions taking place
  • Cost and Time Efficient
  • Meets National Science Education Standards for grades 5-12
  • Time Requirement: 30 minutes
Oscillating reactions demonstrate chemical equilibrium. A reversible color change is imparted on the chromosphore indigo carmine. Energy (swirling or shaking) is used to drive the reaction. The prepared solution may be used for up to an hour, at which time, a fresh solution should be prepared.

Ordering information: Materials Included are Glucose, Sodium hydroxide, and Indigo carmine QuickPrep. Materials Needed But Not Included are distilled or deionized water, balance, and erlenmeyer flask, graduated cylinders


   
 

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Item # Description No. of Uses Unit Availability Price Quantity
470219-088 Oscillating Reactions - The Traffic Light
Hazardous Product
5 Each Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-387-9393 or email borealcs@vwr.com.

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