IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: 2-Methylbutane with Water

Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 2-Methylbutane; C5H12; [78-78-4]  NIST Chemistry WebBook for detail

Original Measurements:
   Black, C.; Joris, G.G.; Taylor, H.S., J. Chem. Phys. 1948, 16, 537-43.

Variables:
   Temperature = 6-21.8 °C

Prepared By:
   M.C. Haulait-Pirson

Experimental Data:   (Notes on the Nomenclature)

Solubility of water in 2-methylbutane at a total saturation pressure of 1 atm
t/°C	g₂/100 g solution	g₂/100 g solution (compiler)	10⁴ * Mole Fraction x₂ (compiler)
15.3	0.0066*	0.0066	2.6
21.3	0.0096*	0.0096	3.8
21.8	0.0097*	0.0097	3.9
6.0	0.00443	0.00443	1.78
6.0	0.00433	0.00433	1.74
6.0	0.00440	0.00440	1.76
20.0	0.00940	0.00940	3.76
20.0	0.00902	0.00902	3.61
20.0	0.00942	0.00942	7.77
20.5	0.01001	0.01001	4.02

Notes:
   Table 1  ^*  Determinations made in glass apparatus

Method/Apparatus/Procedure:
   The method described in ref 1 in which tritium oxide acts as a tracer, was used. Air saturated with radioactive water vapor was bubbled through the (1) sample until saturation was attained. Dissolved water was separated from (1) by absorption on calcim oxide. The tritum was transferred in the counter through equilibration with ethanol vapor.

Source and Purity of Materials:
   (1) Ohio State University under an American Petroleum Institute Project; purity not specified; used as received.
   (2) not specified.

Estimated Errors:
   Solubility: a few percent (type of error not specified).

References:
   ¹Joris, G.G.; Taylor, H.S. J. Chem Phys. 1948, 16, 45.