IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: 2-Propanol with Benzene 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) Benzene; C6H6; [71-43-2]  NIST Chemistry WebBook for detail

Original Measurements:
   Nikurashina, N.I.; Sinegubova, S.I., Zh. Obshch. Khim. 43, 2100 (1973).

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	0.1005	0.8941	0.1246	0.8530
25	298.2	0.1488	0.8428	0.1803	0.7857
25	298.2	0.3308	0.6144	0.3354	0.4793
25	298.2	0.4307	0.4554	0.3710	0.3018
25	298.2	0.4709	0.3704	0.3664	0.2217
25	298.2	0.4908	0.3055	0.3492	0.1672
25	298.2	0.4966	0..2517	0.3246	0.1266
25	298.2	0.4903	0.2039	0.2941	0.0941
25	298.2	0.4816	0.1814	0.2759	0.0800
25	298.2	0.4711	0.1571	0.2571	0.0660
25	298.2	0.4560	0.1360	0.2373	0.0544
25	298.2	0.4538	0.1311	0.2340	0.0520
25	298.2	0.4504	0.1264	0.2299	0.0496
25	298.2	0.4403	0.1119	0.2180	0.0426
25	298.2	0.4280	0.0972	0.2051	0.0358
25	298.2	0.4196	0.0870	0.1968	0.0314
25	298.2	0.3397	0.0295	0.1377	0.0092
25	298.2	0.2483	0.0068	0.0907	0.0019
25	298.2	0.1596	0.0028	0.0540	0.0007

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	0.0267	0.9728	0.0344	0.9635	hydrocarbon-rich phase
25	298.2	0.0567	0.9425	0.0723	0.9243	hydrocarbon-rich phase
25	298.2	0.0825	0.9159	0.1041	0.8892	hydrocarbon-rich phase
25	298.2	0.1133	0.8823	0.1404	0.8414	hydrocarbon-rich phase
25	298.2	0.1441	0.8473	0.1747	0.7905	hydrocarbon-rich phase
25	298.2	0.1750	0.8126	0.2080	0.7429	hydrocarbon-rich phase
25	298.2	0.2100	0.7704	0.2419	0.6828	hydrocarbon-rich phase
25	298.2	0.2400	0.7326	0.2682	0.6297	hydrocarbon-rich phase
25	298.2	0.2710	0.6925	0.2928	0.5756	hydrocarbon-rich phase
25	298.2	0.3010	0.6564	0.3175	0.5326	hydrocarbon-rich phase
25	298.2	0.3308	0.6150	0.3359	0.4805	hydrocarbon-rich phase
25	298.2	0.3580	0.5750	0.3497	0.4321	hydrocarbon-rich phase
25	298.2	0.3810	0.5416	0.3608	0.3946	hydrocarbon-rich phase
25	298.2	0.4070	0.4993	0.3688	0.3480	hydrocarbon-rich phase
25	298.2	0.4280	0.4614	0.3716	0.3082	hydrocarbon-rich phase
25	298.2	0.4460	0.4257	0.3712	0.2726	hydrocarbon-rich phase
25	298.2	0.4700	0.3727	0.3668	0.2238	hydrocarbon-rich phase
25	298.2	0.4830	0.3395	0.3614	0.1955	hydrocarbon-rich phase
25	298.2	0.4930	0.2975	0.3470	0.1611	hydrocarbon-rich phase
25	298.2	0.4970	0.2599	0.3296	0.1326	hydrocarbon-rich phase
25	298.2	0.4900	0.2151	0.2989	0.1010	hydrocarbon-rich phase
25	298.2	0.4504	0.1264	0.2299	0.0496	hydrocarbon-rich phase
25	298.2	0.0867	0.0016	0.0277	0.0004	water-rich phase
25	298.2	0.1500	0.0028	0.0504	0.0007	water-rich phase
25	298.2	0.1816	0.0041	0.0626	0.0011	water-rich phase
25	298.2	0.2025	0.0047	0.0710	0.0013	water-rich phase
25	298.2	0.2150	0.0053	0.0762	0.0014	water-rich phase
25	298.2	0.2250	0.0065	0.0805	0.0018	water-rich phase
25	298.2	0.2325	0.0071	0.0838	0.0020	water-rich phase
25	298.2	0.2400	0.0076	0.0871	0.0021	water-rich phase
25	298.2	0.2500	0.0079	0.0915	0.0022	water-rich phase
25	298.2	0.2600	0.0081	0.0960	0.0023	water-rich phase
25	298.2	0.2660	0.0086	0.0988	0.0025	water-rich phase
25	298.2	0.2730	0.0091	0.1021	0.0026	water-rich phase
25	298.2	0.2810	0.0096	0.1058	0.0028	water-rich phase
25	298.2	0.2910	0.0118	0.1108	0.0035	water-rich phase
25	298.2	0.3050	0.0151	0.1180	0.0045	water-rich phase
25	298.2	0.3130	0.0183	0.1224	0.0055	water-rich phase
25	298.2	0.3210	0.0193	0.1266	0.0059	water-rich phase
25	298.2	0.3320	0.0223	0.1326	0.0069	water-rich phase
25	298.2	0.3460	0.0327	0.1416	0.0103	water-rich phase
25	298.2	0.3650	0.0413	0.1535	0.0134	water-rich phase
25	298.2	0.3930	0.0617	0.1739	0.0210	water-rich phase
25	298.2	0.4504	0.1264 (a)	0.2299	0.0496	water-rich phase

Notes:
   ^a  Critical solubility point.

Method/Apparatus/Procedure:
   This isothermal titration method was used. No more details were reported in the paper.

Source and Purity of Materials:
   (1) Source not specified, pure grade; used as received; b.p.=82°C, n(25°C,D)=1.3752.
   (2) Source not specified; distilled at 80°C; n(25°C,D)=1.5016.
   (3) Doubly distilled.

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

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