Oscillating Reactions: The Traffic Light

Supplier: Ward's Science

Chemical equations small group

Chromatography of amino acids

Chemical equations small group

Chromatography of amino acids

IS7024

470219-088EA 25.7 USD

470219-088

Oscillating Reactions: The Traffic Light

Educational Materials Chemistry Educational Materials Mixtures and Solutions Learning Activities

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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