Kinetic analysis of the decomposition of piperidinium hexathiocyanoatochromate(III) |
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Authors: | J. E. House Jr L. A. Marquardt |
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Affiliation: | (1) Department of Chemistry, Illinois State University, 61761 Normal, Illinois, USA |
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Abstract: | Summary The decomposition of piperidinium hexathiocyanatochromate(III), (pipH)3[Cr(NCS)6](s), into Cr(NCS)3(s) and pipHSCN(g) has been studied isothermally and nonisothermally using t.g.a. Data from isothermal studies were analysed according to 17 different kinetic models and the (, T) data from nonisothermal experiments were analysed using 12 rate laws by the procedure of Reich and Stivala. It was found that while a first-order rate law gave the best fit to the data obtained from isothermal and nonisothermal experiments most frequently, considerable variation exists for both types of experiments. Using the first order model, the activation energy was found to be 77.2 ±4.4kJ mol–1. |
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