IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: 1-Proponal with Hexane (n-hexane) and Water

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Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Proponal (n-propanol, propyl alcohol, n-propyl alcohol); C3H8O; [71-23-8]  NIST Chemistry WebBook for detail
   (3) Hexane (n-hexane); C6H14; [110-54-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Sugi, H.; Katayama, T., J. Chem. Eng. Jpn. 10, 400 (1977).

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 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2
25	298.2	0.0000	0.99989	0.0000	0.99949
25	298.2	0.1290	0.8627	0.1701	0.7934
25	298.2	0.1726	0.8137	0.2197	0.7222
25	298.2	0.2127	0.7666	0.2606	0.6550
25	298.2	0.2468	0.7284	0.2948	0.6067
25	298.2	0.2697	0.7027	0.3166	0.5753
25	298.2	0.3179	0.6399	0.3513	0.4932
25	298.2	0.3379	0.6139	0.3645	0.4618
25	298.2	0.3604	0.5857	0.3799	0.4305
25	298.2	0.4172	0.5139	0.4149	0.3564
25	298.2	0.4643	0.4421	0.4280	0.2842
25	298.2	0.4748	0.4236	0.4282	0.2664
25	298.2	0.4907	0.3969	0.4296	0.2423
25	298.2	0.5048	0.3717	0.4293	0.2204
25	298.2	0.5130	0.3498	0.4223	0.2008
25	298.2	0.5397	0.2897	0.4117	0.1541
25	298.2	0.5619	0.2171	0.3874	0.1044
25	298.2	0.5689	0.1632	0.3609	0.0722
25	298.2	0.5532	0.1224	0.3215	0.0496
25	298.2	0.5251	0.0925	0.2815	0.0346
25	298.2	0.5035	0.0784	0.2578	0.0280
25	298.2	0.4146	0.0371	0.1827	0.0114

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2	Comment(s)
25.0	298.2	0.5676	0.1652	0.3606	0.0732	hydrogen-rich phase
25.0	298.2	0.5787	0.2298	0.4200	0.1163	hydrogen-rich phase
25.0	298.2	0.5016	0.3753	0.4272	0.2229	hydrogen-rich phase
25.0	298.2	0.4292	0.4943	0.4170	0.3349	hydrogen-rich phase
25.0	298.2	0.3298	0.6255	0.3603	0.4766	hydrogen-rich phase
25.0	298.2	0.3320	0.0105	0.1311	0.0029	water-rich phase
25.0	298.2	0.3222	0.0044	0.1253	0.0012	water-rich phase
25.0	298.2	0.3081	0.0026	0.1181	0.0007	water-rich phase
25.0	298.2	0.3030	0.0019	0.1155	0.0005	water-rich phase
25.0	298.2	0.3000	0.0011	0.1140	0.0003	water-rich phase

Method/Apparatus/Procedure:
   The combination of a titration and analytical methods was used. The apparatus and experimental procedure were described in Ref. 1. For glc analysis of 1.6 m column filled with Poropak-Q was used. Solubility of water in hexane was determined by the Karl Fischer method.

Source and Purity of Materials:
   (1) Wako Chemicals Ind. Ltd., guaranteed reagent; dried with Molecular Sieve 3A, distilled; densities agreed within 0.0003 with literature values.
   (2) Merck Uvasol, spectrograde; used as received; densities agreed with 0.0003 with literature values.
   (3) De-ionized, twice distilled.

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

References:
   ¹ H. Sugi, T. Nitta, and Katayama, J. Chem. Eng. Jpn. 9, 12 (1976).

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