Effect of sample mass on the kinetics of thermal decomposition of a solid |
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| Authors: | N. Koga H. Tanaka |
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| Affiliation: | (1) Chemistry Laboratory, Faculty of School Education, Hiroshima University, 3-1-33 Shinonome, Minami-Ku, 734 Hiroshima, Japan |
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| Abstract: | Effects of sample mass on the kinetics of isothermal dehydration of crushed crystals of Li2SO4·H2O were investigated using conventional TG. The process was characterized by a combination of Avrami-Erofeyev and contracting geometry models. Distribution of the fractional reaction, α, in particles within the sample assembly as well as the change in the rate of gross diffusion of the evolved water vapour appear responsible for the sample-mass-dependent kinetic parameters obtained for the system. |
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| Keywords: | effect of sample mass isothermal dehydration kinetics Li2SO4·H2O |
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