This is the striking moment that a chemistry experiment showcased the mesmerizing iodine clock reaction, vividly capturing the transformation of liquids through a series of color changes.

On April 25, 2024, at a university laboratory in Shanghai, the video highlighted a sequence where a student methodically added three distinct chemical solutions into a container.

Initially, the mixture turned a light yellow, which, upon shaking, shifted to a deep blue. Repeated shaking caused the liquid to oscillate between deep yellow and deep blue, creating a captivating visual effect.

The iodine clock reaction is a classical chemical experiment used to demonstrate chemical kinetics and reaction times. The solutions used typically included hydrogen peroxide, potassium iodate, and manganese sulfate, which reacted to produce starch-iodine complex changes visible in color.

The experiment successfully repeated the color change process multiple times, highlighting the predictability and repeatability of chemical reactions under controlled conditions.