"Measurement of Temperature Profiles of Chemical Waves by Thermocolor I" by Istvan P. Nagy and John A. Pojman
 

Measurement of Temperature Profiles of Chemical Waves by Thermocolor Imaging

Document Type

Article

Publication Date

11-27-1992

Department

Chemistry and Biochemistry

School

Mathematics and Natural Sciences

Abstract

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.

Publication Title

Chemical Physics Letters

Volume

200

Issue

1-2

First Page

147

Last Page

152

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