IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

---

 Solubility System: Benzyl alcohol with Hexane (n-hexane) and Water

---

Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Benzyl alcohol (benzenemethanol); C7H8O; [100-51-6]  NIST Chemistry WebBook for detail
   (3) Hexane (n-hexane); C6H14; [110-54-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Ivanova, G.G. Telichko, T.N.; Kolyuchkina, G.Ya.; Timofeev, V.S.; Serafimov, L.A., Tr. Inst.-Mosk. Tonkoi Khim. Tekhnol. Im. M. V. Lomonosova 3(1), 88-94 (1973).

Variables:
   Temperature = 373 K - 298 K

Prepared By:
   A. Skrzecz

Experimental Data:   (Notes on the Nomenclature)
  

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2	Comment(s)
20	293.2	0.010	0.989	0.008	0.990	hydrocarbon-rich phase
20	293.2	0.016	0.983	0.013	0.984	hydrocarbon-rich phase
20	293.2	0.025	0.974	0.020	0.975	hydrocarbon-rich phase
20	293.2	0.012	0.000	0.002	<0.001	water-rich phase
20	293.2	0.018	0.000	0.003	<0.001	water-rich phase
20	293.2	0.029	0.000 (a)	0.005	<0.001	water-rich phase
62.2	335.4	0.024	0.976	0.019	0.978	hydrocarbon-rich phase
62.2	335.4	0.012	0.000 (b)	0.002	<0.001	water-rich phase
62.8	336.0	0.042	0.956	0.034	0.960	hydrocarbon-rich phase
62.8	336.0	0.018	0.000 (b)	0.003	<0.001	water-rich phase
63.1	336.3	0.062	0.935	0.050	0.940	hydrocarbon-rich phase
63.1	336.3	0.023	0.000 (b)	0.004	<0.001	water-rich phase
63.4	336.6	0.079	0.918	0.063	0.921	hydrocarbon-rich phase
63.4	336.6	0.029	0.000 (a)	0.005	<0.001	water-rich phase

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2	Comment(s)
20	293.2	0.978	0.000	0.879	0.000	alcohol-rich phase
20	293.2	0.961	0.008	0.830	0.009	alcohol-rich phase
20	293.2	0.937	0.019	0.768	0.020	alcohol-rich phase
20	293.2	0.914	0.029	0.707	0.028	alcohol-rich phase
20	293.2	0.898	0.034	0.668	0.032	alcohol-rich phase
20	293.2	0.029	0.000	0.005	0.000	water-rich phase
20	293.2	0.029	0.000	0.005	<0.001	water-rich phase
20	293.2	0.029	0.000	0.005	<0.001	water-rich phase
20	293.2	0.029	0.000	0.005	<0.001	water-rich phase
20	293.2	0.029	0.000 (a)	0.005	<0.001	water-rich phase
99.9	373.1	0.813	0.000	0.420	0.000	alcohol-rich phase
99.9	373.1	0.029	0.000 (c)	0.005	<0.001	water-rich phase
92	365	0.816	0.030	0.458	0.021	alcohol-rich phase
92	365	0.029	0.000 (c)	0.005	<0.001	water-rich phase
82	355	0.813	0.058	0.491	0.044	alcohol-rich phase
82	355	0.029	0.000 (c)	0.005	<0.001	water-rich phase
72	345	0.806	0.084	0.513	0.067	alcohol-rich phase
72	345	0.029	0.000 (c)	0.005	<0.001	water-rich phase
63.4	336.6	0.797	0.107	0.529	0.089	alcohol-rich phase
63.4	336.6	0.029	0.000 (a)	0.005	<0.001	water-rich phase

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2	Comment(s)
20	293.2	0.064	0.936	0.052	0.948	hydrocarbon-rich phase
20	293.2	0.050	0.950	0.040	0.958	hydrocarbon-rich phase
20	293.2	0.042	0.957	0.034	0.963	hydrocarbon-rich phase
20	293.2	0.035	0.964	0.028	0.968	hydrocarbon-rich phase
20	293.2	0.031	0.968	0.025	0.970	hydrocarbon-rich phase
20	293.2	0.025	0.974	0.020	0.975	hydrocarbon-rich phase
20	293.2	0.849	0.151	0.817	0.183	alcohol-rich phase
20	293.2	0.892	0.088	0.798	0.099	alcohol-rich phase
20	293.2	0.915	0.052	0.780	0.056	alcohol-rich phase
20	293.2	0.913	0.039	0.731	0.039	alcohol-rich phase
20	293.2	0.905	0.038	0.700	0.037	alcohol-rich phase
20	293.2	0.898	0.034 (a)	0.668	0.032	alcohol-rich phase
67.0	340.2	0.112	0.885	0.090	0.895	hydrocarbon-rich phase
67.0	340.2	0.759	0.211 (b)	0.631	0.220	alcohol-rich phase
66.0	339.2	0.104	0.892	0.084	0.901	hydrocarbon-rich phase
66.0	339.2	0.794	0.159 (b)	0.623	0.157	alcohol-rich phase
65.3	338.5	0.102	0.895	0.082	0.903	hydrocarbon-rich phase
65.3	338.5	0.796	0.146 (b)	0.599	0.138	alcohol-rich phase
64.5	337.7	0.087	0.910	0.070	0.915	hydrocarbon-rich phase
64.5	337.7	0.795	0.132 (b)	0.569	0.119	alcohol-rich phase
64.0	337.2	0.085	0.912	0.068	0.916	hydrocarbon-rich phase
64.0	337.2	0.796	0.120 (b)	0.550	0.104	alcohol-rich phase
63.4	336.6	0.079	0.918	0.063	0.921	hydrocarbon-rich phase
63.4	336.6	0.797	0.107 (a)	0.529	0.089	alcohol-rich phase

Notes:
   ^a  Three liquid phases in equilibrium.
   ^b,c  Boiling temperature estimated by the compiler; (b) ± 0.5 K; (c) ± 5 K.

Method/Apparatus/Procedure:
   The analytical method was used. Composition of samples was determined by glc analysis with 2-propanol as an inert standard. (Column: 1.8 m x 5 mm internal diameter, 10% squalane on polichromom, temp. 130°C, H₂-9 L/h). Solubility at 293 K was determined by Alekeev's method; at boiling point in the apparatus reported in Ref. 1. The three liquid phases in equilibrium were observed in the system.

Source and Purity of Materials:
   (1) Source not specified, "chromatographoic purity," used as received; n(20°C,D)=1.5401, b.p.=205.20°C.
   (2) Source not specified "chromatographoic purity," used as received; n(20°C,D)=1.3747, b.p.=68.70°C.
   (3) Doubly distilled.

Estimated Errors:
   Solubility: Not reported.
   Temperature: Concentration ±0.5% of glc analysis.

References:
   ¹ G. Ya. Kolyuchkina, V. S. Timofeev, and L. A. Serafimov, Tr. Inst.-Mosk. Inst. Tonkoi Khim.Tekhnol. im M. V. Lomonosova 1(3), 65 (1971).

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)