IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Benzene with Water

Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Benzene; C6H6; [71-43-2]  NIST Chemistry WebBook for detail

Original Measurements:
   Brown, R.L.; Wasik, S.P., J. Res. Natl. Bur. Stds. A. 1974, 78, 453-60.

Variables:
   Temperature = 4.5-20.1 °C

Prepared By:
   G.T. Hefter

Experimental Data:   (Notes on the Nomenclature)

Solubility of benzene in water
t/°C	g₁/100 g solution	10⁴ * Mole Fraction x₁ (compiler)
4.5	0.184 ± 0.0033	4.25
6.3	0.185 ± 0.0033	4.27
7.1	0.181 ± 0.0055	4.18
9.0	0.181 ± 0.0034	4.18
11.8	0.177 ± 0.0041	4.09
12.1	0.177 ± 0.0035	4.09
15.1	0.179 ± 0.0038	4.14
17.9	0.179 ± 0.0038	4.14
20.1	0.176 ± 0.0032	4.07

Notes:
   Table 1  ^a  Errors given as standard deviations.

Method/Apparatus/Procedure:
   Solubilities were calculated from partition coefficent measurements for the hydrocarbon and its vapor using headspace chromatography.
The apparatus and the method of obtaining the partition coeffients are described in detail in the paper. The hydrocarbon was introduced as a vapor (to avoid emulsification) into a glass equilibration cell containing about 43 cm³ of water. The vapor was subsequently analysed by gas chromatography using He as the carrier. Possible sources of error are discussed in detail although the source of vapor pressure data used to calculate solubilities are not given.

Source and Purity of Materials:
   (1) 99.99 mole per cent purity; source and methods or purification not specified.
   (2) distilled.

Estimated Errors:
   Solubility: See table above.
   Temperature: ± 0.01 K