Chemical Waves in BZ Reagent (6 of 9)

Chemical Waves in BZ Reagent (6 of 9)

C011/8855 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 40.0MB

Downloadable file size: 1.3MB

Price image Pricing

Please login to use the price calculator


This image is part of the sequence Science and technology: Chemical waves in BZ reagent

Credit: TED KINSMAN/SCIENCE PHOTO LIBRARY

Caption: 6 of 9 images in a sequence showing chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modelled using chaos mathematics.

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

Keywords: belousov zhabotinskii, belousov-zhabotinsky, bz, catalyst, cerium sulphate, chaos, chaos math, chaos mathematics, chemical, chemical reaction, chemical wave, chemistry, citric acid, concentration front, demonstration, educational, experiment, math, mathematics, natural pattern, oxidation, pattern, patterns, petri dish, photo sequence, photo series, potassium bromate, reaction, reagent, reduction, sequence, sequential, series

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