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THE THERMAL decomposition course of rubidium acetate ……. Rb(CH3COO) was probed on heating up to 1000 °C in a dynamic atmosphere of air by thermogravimetry and differential thermal analysis. The solid and gas-phase decomposition products were identified by X-ray diffractometry, ex- and in-situ infrared spectroscopy and mass spectrometry. Results obtained showed the acetate to decompose stepwise to yield eventually Rb2O at ≥ 900 °C encompassing the formation of the intermediate Rb2CO3 solid product (at 400-700 °C)) and H2O, (CH3)2CO and CO2 as primary gaseous products. A considerable enhancement of the production of primary gas phase products at 400-450 °C and the emergence of (CH3)2C=CH2, CH4 and CO molecules in the gas phase are ascribed to reactions occurring at the gas/solid interface at the expense of some of the primary products. The activity at the gas solid interface has been indicated These interfacial activities impart application-worthy adsorptive and catalytic functions for the associated solid products.
DOI
10.21608/ejchem.2011.1404
Keywords
Rubidium acetate, Rubidium carbonate, Infrared spectroscopy, Thermal analysis and Gas/solid interfacial reactivity
Link
https://ejchem.journals.ekb.eg/article_1404.html
Detail API
https://ejchem.journals.ekb.eg/service?article_code=1404
Publication Title
Egyptian Journal of Chemistry
Publication Link
https://ejchem.journals.ekb.eg/
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