Measurement of Temperature Profiles of Chemical Waves by Thermocolor Imaging
Chemistry and Biochemistry
A new method is presented for the measurement of the temperature profile of chemical waves propagating through a solution. Using solutions of thermocolor materials, the temperature distribution caused by the heat released in the propagating chemical reaction front is visualized and recorded using digital image processing methods. After a calibration, the temperature gradient can be calculated from the gray scale value in a digitized image. The method was applied to the fronts in the chlorate oxidation of sulfite. Temperature measurements in the 25-44-degrees-C range were made with 2.5-degrees-C resolution and in the 44-90-degrees-C range with 0.5-degrees-C resolution.
Chemical Physics Letters
Nagy, I. P.,
Pojman, J. A.
(1992). Measurement of Temperature Profiles of Chemical Waves by Thermocolor Imaging. Chemical Physics Letters, 200(1-2), 147-152.
Available at: http://aquila.usm.edu/fac_pubs/6903