Fast determination of reaction kinetic parameters with the use of microwave heating. Kinetics of decomposition of organic substances with nitric acid |
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Authors: | I V Kubrakova R Kh Khamizov |
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Institution: | (1) V. I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, 19 ul. Kosygina, 119991 Moscow, Russian Federation |
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Abstract: | A mathematical model for the kinetics of a chemical reaction under microwave irradiation in a close volume in the simplest
approximation of the uniform temperature and pressure distribution in a system was proposed. The previously proposed dynamic
method for determination of the activation energy of oxidation of organic substances with nitric acid was substantiated. According
to this method, the activation energy is determined from the experimental exponential plot for the pressure in the nonisothermic
system vs. inverse temperature of the reaction mixture.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1371–1375, June, 2005. |
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Keywords: | microwave heating kinetics mathematical model activation energy oxidation of organic substances nitric acid oxalic acid phenylalanine trypthophan |
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