IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

---

 Solubility System: 1-Proponal with Cyclohexane and Water

---

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) Cyclohexane; C6H12; [110-82-7]  NIST Chemistry WebBook for detail

Original Measurements:
   Washburn, E.R., Brockway, C.E.; Graham, C.L.; Deming, P., J. Am. Chem. Soc. 64, 1886 (1942).

Variables:
   Temperature = 298 K - 308 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)
25.0	298.2	0.0730	0.9241	0.0983	0.8887
25.0	298.2	0.1498	0.8409	0.1917	0.7686
25.0	298.2	0.2255	0.7560	0.2727	0.6527
25.0	298.2	0.2987	0.6673	0.3361	0.5362
25.0	298.2	0.3794	0.5664	0.3933	0.4193
25.0	298.2	0.4522	0.4657	0.4272	0.3141
25.0	298.2	0.5150	0.3681	0.4410	0.2251
25.0	298.2	0.5668	0.2695	0.4342	0.1474
25.0	298.2	0.5873	0.1777	0.3920	0.0847
25.0	298.2	0.5760	0.1291	0.3487	0.0558
25.0	298.2	0.4952	0.0656	0.2467	0.0233
25.0	298.2	0.4301	0.0429	0.1939	0.0138
25.0	298.2	0.3563	0.0216	0.1456	0.0063
25.0	298.2	0.2742	0.0072	0.1024	0.0019
25.0	298.2	0.1849	0.0008	0.0637	0.0002
25.0	298.2	0.0940	0.0006	0.0302	0.0001
35.0	308.2	0.0762	0.9206	0.1024	0.8833
35.0	308.2	0.1486	0.8421	0.1903	0.7700
35.0	308.2	0.2254	0.7560	0.2725	0.6525
35.0	308.2	0.2981	0.6704	0.3380	0.5428
35.0	308.2	0.3748	0.5729	0.3911	0.4269
35.0	308.2	0.4527	0.4654	0.4278	0.3140
35.0	308.2	0.5140	0.3731	0.4442	0.2303
35.0	308.2	0.5668	0.2696	0.4343	0.1475
35.0	308.2	0.5891	0.1805	0.3963	0.0867
35.0	308.2	0.5799	0.1314	0.3543	0.0573
35.0	308.2	0.5160	0.0742	0.2665	0.0274
35.0	308.2	0.4296	0.0419	0.1933	0.0135
35.0	308.2	0.3487	0.0221	0.1416	0.0064
35.0	308.2	0.2746	0.0085	0.1028	0.0023
35.0	308.2	0.1840	0.0011	0.0634	0.0003
35.0	308.2	0.0921	0.0007	0.0295	0.0002

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1 (compiler)	Mole Fraction x2 (compiler)	Comment(s)
25.0	298.2	0.009	0.991	0.0126	0.9874	hydrocarbon-rich phase
25.0	298.2	0.014	0.986	0.0195	0.9805	hydrocarbon-rich phase
25.0	298.2	0.044	0.956	0.0606	0.9394	hydrocarbon-rich phase
25.0	298.2	0.121	0.872	0.1578	0.8118	hydrocarbon-rich phase
25.0	298.2	0.213	0.770	0.2599	0.6709	hydrocarbon-rich phase
25.0	298.2	0.416	0.517	0.4124	0.3660	hydrocarbon-rich phase
25.0	298.2	0.526	0.350	0.4422	0.2101	hydrocarbon-rich phase
25.0	298.2	0.578	0.237	0.4236	0.1240	hydrocarbon-rich phase
25.0	298.2	0.457	0.051	0.2141	0.0171	hydrocarbon-rich phase
25.0	298.2	0.058	0.001	0.0181	0.0002	water-rich phase
25.0	298.2	0.086	0.003	0.0275	0.0007	water-rich phase
25.0	298.2	0.139	0.005	0.0464	0.0012	water-rich phase
25.0	298.2	0.175	0.006	0.0601	0.0015	water-rich phase
25.0	298.2	0.193	0.008	0.0674	0.0020	water-rich phase
25.0	298.2	0.208	0.007	0.0735	0.0018	water-rich phase
25.0	298.2	0.219	0.008	0.0781	0.0020	water-rich phase
25.0	298.2	0.230	0.011	0.0830	0.0028	water-rich phase
25.0	298.2	0.396	0.032	0.1702	0.0098	water-rich phase
35.0	308.2	0.011	0.989	0.0153	0.9847	hydrocarbon-rich phase
35.0	308.2	0.018	0.981	0.0249	0.9704	hydrocarbon-rich phase
35.0	308.2	0.067	0.931	0.0907	0.9002	hydrocarbon-rich phase
35.0	308.2	0.141	0.851	0.1819	0.7837	hydrocarbon-rich phase
35.0	308.2	0.250	0.727	0.2956	0.6137	hydrocarbon-rich phase
35.0	308.2	0.426	0.506	0.4201	0.3563	hydrocarbon-rich phase
35.0	308.2	0.536	0.334	0.4437	0.1974	hydrocarbon-rich phase
35.0	308.2	0.586	0.211	0.4145	0.1066	hydrocarbon-rich phase
35.0	308.2	0.480	0.055	0.2318	0.0190	hydrocarbon-rich phase
35.0	308.2	0.062	0.001	0.0194	0.0002	water-rich phase
35.0	308.2	0.083	0.001	0.0264	0.0002	water-rich phase
35.0	308.2	0.133	0.001	0.0440	0.0002	water-rich phase
35.0	308.2	0.161	0.001	0.0544	0.0002	water-rich phase
35.0	308.2	0.177	0.001	0.0606	0.0002	water-rich phase
35.0	308.2	0.190	0.000	0.0657	0.0000	water-rich phase
35.0	308.2	0.203	0.001	0.0710	0.0002	water-rich phase
35.0	308.2	0.223	0.003	0.0794	0.0008	water-rich phase
35.0	308.2	0.364	0.024	0.1502	0.0071	water-rich phase

Method/Apparatus/Procedure:
   The titration method, Refs 1,2, was used. Binary mixtures of known composition were titrated with the third component. The total weight of liquids employed was 13-15 g. The refractive indexes of mixtures were used to construct the refractive index/composition curve, which was used further to find compositions of equilibrium phases.

Source and Purity of Materials:
   (1) Eastman Kodak Company, best grade; dried with active lime, distilled; d(25°C,4°C)=0.8000, n(25°C,D)=1.3838.
   (2) Eastman Kodak Company; distilled, dried with Na, recrystallized several times; d(25°C,4°C)=0.7746, n(25°C,D)=1.4232, f.p.=6.1°C.
   (3) Source not specified.

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

References:
   ¹ R. Vold and E. R. Washburn, J. Am. Chem. Soc. 54, 4217 (1932).
   ² E. R. Washburn and H. C. Spencer, J. Am. Chem. Soc. 56, 361 (1934).

---

Distributed by the Office of Data and Informatics of the National Institute of Standards and Technology (NIST) Material Measurement Laboratory (MML).
Website is owned by NIST (an agency of the U.S. Department of Commerce)

---

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