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EnglishA novel kind of pycnometer was designed for liquid density measurements suitable to be used over wide ranges of temperature and pressure. Two similar pycnometers have been manufactured and tested with n-nonane 99.7mol% in the temperature range from 233K to 313K at pressure lower than 10MPa. To validate the procedure, the experimental values of density of an n-nonane sample have been compared with the density values given in the literature by means of the En number. The density uncertainty of n-nonane is found to be 0.16kgm−3 (0.02%) in the temperature range from 253K to 313K and lower than 0.07% between 233K and 243K over the whole pressure range tested.
Original pycnometers for volatile liquid density over wide ranges of temperature and pressure: practical example / Lorefice S; Romeo R; Santiano M; Capelli A. - In: METROLOGIA. - ISSN 0026-1394. - 51(2014), pp. 154-160. [10.1088/0026-1394/51/3/154]
| Titolo: | Original pycnometers for volatile liquid density over wide ranges of temperature and pressure: practical example | |
| Autori: | ||
| Data di pubblicazione: | 2014 | |
| Rivista: | METROLOGIA | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1088/0026-1394/51/3/154 | |
| Abstract: | A novel kind of pycnometer was designed for liquid density measurements suitable to be used over ...wide ranges of temperature and pressure. Two similar pycnometers have been manufactured and tested with n-nonane 99.7mol% in the temperature range from 233K to 313K at pressure lower than 10MPa. To validate the procedure, the experimental values of density of an n-nonane sample have been compared with the density values given in the literature by means of the En number. The density uncertainty of n-nonane is found to be 0.16kgm−3 (0.02%) in the temperature range from 253K to 313K and lower than 0.07% between 233K and 243K over the whole pressure range tested. | |
| Full-text (pubblici): | none | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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