The vapour pressures of n-octane determined using comparative ebulliometry

M. B. Ewing; J. C. Sanchez Ochoa

doi:10.1016/S0378-3812(03)00174-2

The vapour pressures of n-octane determined using comparative ebulliometry

M. B. Ewing, J. C. Sanchez Ochoa

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24 Scopus citations

Abstract

The vapour pressures of n-octane have been measured using comparative ebulliometry with water as the reference fluid. The results cover the temperature and pressure range (323.2K, 6.7kPa) to (563.3K, 2301.7kPa) and have been described by a Wagner style equation with a fractional standard deviation of 3.3×10^-5 in the vapour pressure. The critical pressure p_c was treated as an adjustable parameter and the value of p_c=2482kPa was obtained using the literature value for the critical temperature. An Antoine equation that describes the results below a pressure of 142kPa with a standard deviation of 1.4mK in the condensation temperature has also been obtained.

Original language	English
Pages (from-to)	277-285
Number of pages	9
Journal	Fluid Phase Equilibria
Volume	210
Issue number	2
DOIs	https://doi.org/10.1016/S0378-3812(03)00174-2
State	Published - 15 Aug 2003
Externally published	Yes

Keywords

Antoine equation
Comparative ebulliometry
Octane
Vapour pressure
Wagner equations

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10.1016/S0378-3812(03)00174-2

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title = "The vapour pressures of n-octane determined using comparative ebulliometry",

abstract = "The vapour pressures of n-octane have been measured using comparative ebulliometry with water as the reference fluid. The results cover the temperature and pressure range (323.2K, 6.7kPa) to (563.3K, 2301.7kPa) and have been described by a Wagner style equation with a fractional standard deviation of 3.3×10-5 in the vapour pressure. The critical pressure pc was treated as an adjustable parameter and the value of pc=2482kPa was obtained using the literature value for the critical temperature. An Antoine equation that describes the results below a pressure of 142kPa with a standard deviation of 1.4mK in the condensation temperature has also been obtained.",

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T1 - The vapour pressures of n-octane determined using comparative ebulliometry

AU - Ewing, M. B.

AU - Sanchez Ochoa, J. C.

PY - 2003/8/15

Y1 - 2003/8/15

N2 - The vapour pressures of n-octane have been measured using comparative ebulliometry with water as the reference fluid. The results cover the temperature and pressure range (323.2K, 6.7kPa) to (563.3K, 2301.7kPa) and have been described by a Wagner style equation with a fractional standard deviation of 3.3×10-5 in the vapour pressure. The critical pressure pc was treated as an adjustable parameter and the value of pc=2482kPa was obtained using the literature value for the critical temperature. An Antoine equation that describes the results below a pressure of 142kPa with a standard deviation of 1.4mK in the condensation temperature has also been obtained.

AB - The vapour pressures of n-octane have been measured using comparative ebulliometry with water as the reference fluid. The results cover the temperature and pressure range (323.2K, 6.7kPa) to (563.3K, 2301.7kPa) and have been described by a Wagner style equation with a fractional standard deviation of 3.3×10-5 in the vapour pressure. The critical pressure pc was treated as an adjustable parameter and the value of pc=2482kPa was obtained using the literature value for the critical temperature. An Antoine equation that describes the results below a pressure of 142kPa with a standard deviation of 1.4mK in the condensation temperature has also been obtained.

KW - Antoine equation

KW - Comparative ebulliometry

KW - Octane

KW - Vapour pressure

KW - Wagner equations

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U2 - 10.1016/S0378-3812(03)00174-2

DO - 10.1016/S0378-3812(03)00174-2

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JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

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ER -

The vapour pressures of n-octane determined using comparative ebulliometry

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Keywords

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