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人造黄钾铁矾的氧化降解动力学
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| Thermal decomposition of a synthetic K-H3O jarosite analog was investigated. A complex reaction model describing the decomposition sequence was proposed based on features observed from thermogravimetic analysis and X-ray diffraction analysis of partially decomposed jarosite. Observed (OH)− and SO3 loss was broken down into subreactions. Kinetic data was determined by isoconversion analysis to describe the individual subreactions. The predicted model reasonably matched the observed decomposition. The results pertaining to the identification of subreactions and assignment of kinetic triplet data described in this paper will be the basis for potential use of jarosite type minerals as thermal witness materials. |
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2017-02-22 15:42:48, 414.95 K
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