This reaction is a version of the iodine clock reaction. As iodine concentration increases a blue starch-iodine complex is formed, when iodide ion concentration decreases, the solution turns yellow.

ScholAR™ Demonstration Kits require 15-20 min. per demonstration. Enough chemicals are provided in each kit for 5-7 demonstrations. Kits include an Instructor's Sheet with safety information and detailed instructions, including chemical disposal tips, if required.

All kits can be shipped without Hazardous Materials Surcharges. Some preparation is required, but prep time is minimal.

Kits include all required chemicals.  You supply the glassware, lab equipment, and safety equipment.