Iodine Clock Reaction #1
by Martyn F. Chillmaid/science Photo Library
Title
Iodine Clock Reaction #1
Artist
Martyn F. Chillmaid/science Photo Library
Medium
Photograph - Photograph
Description
Iodine clock reaction. At left, a clear solution of potassium iodide, sodium thiosulfate, and starch is added to a clear solution of hydrogen peroxide with sulfuric acid in the conical flask. A digital clock is started. At right, a chemical equilibrium has been reached when the solution turns a dark blue/black. The digital timer is stopped and the reaction time is read off.
Uploaded
May 9th, 2022
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