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 |