Iodine clock reaction

Iodine clock reaction

C028/8139 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 51.5MB

Downloadable file size: 1.4MB

Price image Pricing

Please login to use the price calculator


This image is part of the sequence Science and technology: Iodine clock reaction

Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: 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.

Release details: Model release not required. Property release not required.

Keywords: chemical, chemical clock, chemistry, clear solution, colorless, colourless, conical flask, digital timer, equilibrium, hydrogen peroxide, iodine clock, kinetics, no-one, nobody, potassium iodide, reaction, reaction time, school science, science education, sodium thiosulfate, starch, sulfuric acid, sulphuric acid, white background

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.