IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: 2-Propanol with Nonane (n-nonane) and Water

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Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 2-Propanol (isopropanol, isopropyl alcohol); C3H8O; [67-63-0]  NIST Chemistry WebBook for detail
   (3) Nonane (n-nonane); C9H20; [111-84-2]  NIST Chemistry WebBook for detail

Original Measurements:
   Vorobeva, A.I.; Karapetyants, M., Kh., Zh. Fiz. Khim. 41, 1984-9 (1967).

Variables:
   Temperature = 298 K

Prepared By:
   A. Skrzecz

Experimental Data:   (Notes on the Nomenclature)
  

Compositions along the saturation curve

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1 (compiler)	Mole Fraction x2 (compiler)
25	298.2	0.000	0.999	0.0000	0.9929
25	298.2	0.075	0.921	0.1443	0.8301
25	298.2	0.174	0.813	0.2908	0.6367
25	298.2	0.295	0.675	0.4147	0.4446
25	298.2	0.361	0.597	0.4623	0.3582
25	298.2	0.401	0.550	0.4877	0.3134
25	298.2	0.483	0.448	0.5232	0.2274
25	298.2	0.562	0.346	0.5451	0.1572
25	298.2	0.638	0.234	0.5432	0.0933
25	298.2	0.665	0.183	0.5287	0.0682
25	298.2	0.676	0.149	0.5084	0.0525
25	298.2	0.680	0.105	0.7401	0.0340
25	298.2	0.637	0.045	0.3706	0.0123
25	298.2	0.557	0.020	0.2817	0.0047
25	298.2	0.399	0.003	0.1666	0.0006

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1 (compiler)	Mole Fraction x2 (compiler)	Comment(s)
25	298.2	0.046	0.951	0.092	0.888	hydrocarbon-rich phase
25	298.2	0.080	0.915	0.152	0.816	hydrocarbon-rich phase
25	298.2	0.095	0.899	0.177	0.786	hydrocarbon-rich phase
25	298.2	0.122	0.870	0.219	0.733	hydrocarbon-rich phase
25	298.2	0.174	0.813	0.291	0.637	hydrocarbon-rich phase
25	298.2	0.226	0.754	0.350	0.547	hydrocarbon-rich phase
25	298.2	0.248	0.730	0.374	0.516	hydrocarbon-rich phase
25	298.2	0.295	0.675	0.415	0.445	hydrocarbon-rich phase
25	298.2	0.342	0.621	0.452	0.385	hydrocarbon-rich phase
25	298.2	0.360	0.600	0.465	0.363	hydrocarbon-rich phase
25	298.2	0.404	0.547	0.490	0.311	hydrocarbon-rich phase
25	298.2	0.435	0.510	0.507	0.279	hydrocarbon-rich phase
25	298.2	0.443	0.005	0.194	0.001	water-rich phase
25	298.2	0.608	0.034	0.334	0.009	water-rich phase
25	298.2	0.649	0.053	0.389	0.015	water-rich phase
25	298.2	0.676	0.088	0.449	0.027	water-rich phase
25	298.2	0.671	0.166	0.519	0.060	water-rich phase
25	298.2	0.632	0.244	0.545	0.099	water-rich phase
25	298.2	0.605	0.284	0.546	0.120	water-rich phase
25	298.2	0.568	0.338	0.546	0.152	water-rich phase
25	298.2	0.525	0.397	0.541	0.192	water-rich phase
25	298.2	0.510	0.417	0.537	0.206	water-rich phase
25	298.2	0.470	0.466	0.521	0.242	water-rich phase
25	298.2	0435	0.510 (a)	0.507	0.279	water-rich phase

Notes:
   ^a  Critical point obtained graphically by the authors.

Method/Apparatus/Procedure:
   The experimental methods were described in Ref. 1. Water impurities in alcohol were taken into account in the measurements. Critical point of liquid-liquid equilibrium was obtained graphically by the method reported in Ref. 2.

Source and Purity of Materials:
   (1) Source and method of preparation were reported in Ref. 1.
   (2) Source not specified; pure grade; distilled; water concentration was analyzed by the Karl Fischer method.
   (3) Doubly distilled.

Estimated Errors:
   Solubility: Not reported.
   Temperature: Not specified.

References:
   ¹ A. I. Vorobeva and M. Kh. Karapetyants, Zh. Fiz. Khim. 40, 3018 (1966).
   ² E. F. Zilberman, Zh. Fiz. Khim. 26, 1458 (1952).

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Last updated: February 18, 2015 (Created: August 17, 2007)