Vapour pressures of n-pentane determined by comparative ebulliometry |
| |
| Institution: | 1. Laboratoire de Chimie, École Normale Supérieure de Lyon, CNRS, Université Claude Bernard Lyon 1, 46 allée d’Italie, F-69364 Lyon, France;2. Laboratoire de Chimie, Catalyse, Polymères, Procédés (C2P2), CNRS, Université Claude Bernard Lyon 1, CPE Lyon, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne cedex, France;3. Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, F-13397 Marseille, France;3. From the Center for Biomedical Mass Spectrometry, Department of Biochemistry, Cell Biology and Genomics, Boston University School of Medicine, Boston, Massachusetts 02118 and;4. Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts 02118 |
| |
| Abstract: | The vapour pressures of n-pentane have been measured using comparative ebulliometry with water as the reference substance. The measurements cover the temperature and pressure ranges 309 K and 102 kPa to 456 K and 2728 kPa. When combined with selected literature results, the range was extended downwards to a temperature and pressure of 268.8 K and 19.9 kPa and the combined data sets were correlated by a Wagner-type equation with a standard deviation of 18 Pa in the vapour pressure. The critical pressure was treated as an adjustable parameter and the value pc = 3367.4 kPa was obtained using a selected critical temperature, Tc = 469.7 K. The calculated normal boiling temperature was Tb = 309.207 K and an extrapolation to the triple point temperature Ttp = 143.48 K predicted a pressure of ptp = 0.078 Pa. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
