Title

MEASUREMENT OF TEMPERATURE PROFILES OF CHEMICAL WAVES BY THERMOCOLOR IMAGING

Authors

IP NAGY
JA POJMAN

Document Type

Article

Publication Date

11-27-1992

Department

Chemistry and Biochemistry

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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