Gas-phase standard enthalpy of formation of 3,5-dimethyl-4-nitroisoxazole determined by semi-micro-combustion calorimetry and thermal analysis
| Autor: | E. Adriana Camarillo, Henoc Flores, Jaime Carvente |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Enthalpy Thermodynamics 02 engineering and technology Calorimetry 021001 nanoscience & nanotechnology Condensed Matter Physics Combustion 01 natural sciences Standard enthalpy of formation Isothermal process 010406 physical chemistry 0104 chemical sciences Sublimation (phase transition) Heat of combustion Physical and Theoretical Chemistry 0210 nano-technology Thermal analysis |
| Zdroj: | Journal of Thermal Analysis and Calorimetry. 139:2197-2202 |
| ISSN: | 1588-2926 1388-6150 |
| DOI: | 10.1007/s10973-019-08548-3 |
| Popis: | The present paper reports the determination of the standard (p° = 0.1 MPa) molar enthalpy of formation in gas phase at T = 298.15 K of 3,5-dimethyl-4-nitroisoxazole, which was derived from the enthalpy of combustion in solid state and the sublimation enthalpy. The combustion enthalpy was derived from the respective combustion energy value, which was obtained from combustion calorimetry using a static bomb combustion calorimeter in oxygen atmosphere at T = 298.15 K. The sublimation enthalpy was obtained at the same temperature by using thermogravimetry experiments in isothermal regime. The purity and the constant pressure heat capacity of the compound were determined by using differential scanning calorimetry, priori to carry out the combustion experiments. The value obtained of formation enthalpy of compound in gas phase presents high precision and low uncertainty. |
| Databáze: | OpenAIRE |
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