IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Ethanol with 1-Heptene and Water

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Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Heptene; C7H14; [592-76-7]  NIST Chemistry WebBook for detail
   (3) Ethanol (ethyl alcohol); C2H6O; [64-17-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Letcher, T.M.; Bricknell, B.C.; Sewry, I.D.; Radloff, S.E.; J. Chem. Eng. Data 39, 320-3 (1994).

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
25.0	298.2	0.000	1.000	0.000	1.000
25.0	298.2	0.109	0.885	0.202	0.770
25.0	298.2	0.223	0.762	0.361	0.579
25.0	298.2	0.311	0.666	0.455	0.457
25.0	298.2	0.409	0.555	0.538	0.342
25.0	298.2	0.503	0.446	0.596	0.248
25.0	298.2	0.586	0.340	0.628	0.171
25.0	298.2	0.653	0.247	0.637	0.113
25.0	298.2	0.700	0.154	0.611	0.063
25.0	298.2	0.692	0.063	0.513	0.022
25.0	298.2	0.620	0.042	0.412	0.013
25.0	298.2	0.507	0.036	0.300	0.010
25.0	298.2	0.438	0.020	0.239	0.005
25.0	298.2	0.112	0.005	0.047	0.001
25.0	298.2	0.000	0.000	0.000	0.000

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	0.225	0.761	0.365	0.578	hydrocarbon-rich phase
25.0	298.2	0.197	0.791	0.330	0.620	hydrocarbon-rich phase
25.0	298.2	0.148	0.843	0.262	0.700	hydrocarbon-rich phase
25.0	298.2	0.125	0.869	0.228	0.743	hydrocarbon-rich phase
25.0	298.2	0.103	0.892	0.193	0.783	hydrocarbon-rich phase
25.0	298.2	0.049	0.948	0.099	0.890	hydrocarbon-rich phase
25.0	298.2	0.504	0.444	0.595	0.246	water-rich phase
25.0	298.2	0.582	0.346	0.627	0.175	water-rich phase
25.0	298.2	0.645	0.260	0.639	0.121	water-rich phase
25.0	298.2	0.706	0.089	0.555	0.033	water-rich phase
25.0	298.2	0.641	0.053	0.442	0.017	water-rich phase
25.0	298.2	0.438	0.020	0.239	0.005	water-rich phase

Method/Apparatus/Procedure:
   The experimental methods have been described in Ref. 1. No more details were reported in the paper.

Source and Purity of Materials:
   (1) Source not specified.
   (2) Aldrich; distilled; purity >99.8 mole % by glc, p=0.692 65 g cm^-3.
   (3) Source not specified.

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

References:
   ¹ T. M. Letcher and P. M. Siswana, Fluid Phase Equilib. 74, 203 (1992).

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