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Автор Juan Z Dávalos
Автор M Victoria Roux
Автор Juan Z Dávalos
Дата выпуска 2000-10-01
dc.description To obtain reliable standard energies of combustion with small amounts of C, H, O compounds, a new microcombustion calorimetry system has been set up. The design, construction, calibration and measurement experiments are described. The system includes a commercial combustion bomb with an internal volume of 22 cm<sup>3</sup>. Samples of around 80 mg are suitable if one wants to retain the same levels of accuracy and reproducibility as those in macrocombustion experiments. Calibration of the calorimeter was performed using benzoic acid. ε(calorimeter) = 2083.74±0.48JK<sup>-1</sup> was obtained. Combustion measurements using m-methoxybenzoic acid were made in order to verify the chemistry of the combustion process involved in the corresponding analysis of results and the accuracy of the measurement of combustion energy. The uncertainty of the results shows that the instrument described and the experimental procedure used for the determination of enthalpies of formation of compounds containing C, H and O provide a high reliability.
Формат application.pdf
Издатель Institute of Physics Publishing
Название The design, construction and testing of a microcombustion calorimeter suitable for organic compounds containing C, H and O
Тип paper
DOI 10.1088/0957-0233/11/10/301
Electronic ISSN 1361-6501
Print ISSN 0957-0233
Журнал Measurement Science and Technology
Том 11
Первая страница 1421
Последняя страница 1425
Аффилиация Juan Z Dávalos; Laboratorio de Termoquímica, Instituto de Química Física `Rocasolano', CSIC, Serrano 119, 28006 Madrid, Spain
Аффилиация M Victoria Roux; Laboratorio de Termoquímica, Instituto de Química Física `Rocasolano', CSIC, Serrano 119, 28006 Madrid, Spain
Аффилиация Juan Z Dávalos; Laboratorio de Termoquímica, Instituto de Química Física `Rocasolano', CSIC, Serrano 119, 28006 Madrid, Spain
Выпуск 10

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