A non-isothermal kinetic study of the thermal decomposition of magnesium alkoxides and amides |
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Authors: | EC Ashby GFred Willard |
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Institution: | School of Chemistry, Georgia Institute of Technology, Atlanta, Georgia 30332 U.S.A. |
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Abstract: | The thermal decomposition of alkoxides and amides of magnesium have been studied by vacuum TGA under both isothermal and non-isothermal conditions. These compounds were found to follow a unimolecular decay law, which in integrated form is ln(1 α) kt, where α is the fraction of material reacted, and k is the Arrhenius rate constant. The rate-controlling process is random nucleation, one nucleus on each particle. Energies of activation calculated by isothermal and non-isothermal methods agree to within ±20%. |
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