Original pycnometers for volatile liquid density over wide ranges of temperature and pressure: practical example

Lorefice, Salvatore; Romeo, R; Santiano, M; Capelli, A.

doi:10.1088/0026-1394/51/3/154

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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.

Titolo:	Original pycnometers for volatile liquid density over wide ranges of temperature and pressure: practical example
Autori:	LOREFICE, SALVATORE Romeo R Santiano M Capelli A. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2014
Rivista:	METROLOGIA
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.
Handle:	http://hdl.handle.net/11696/33365
Appare nelle tipologie:	1.1 Articolo in rivista

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