IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Methanol 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) Methanol (methyl alcohol); CH4O; [67-56-1]  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	0.105	0.894	0.264	0.731
25.0	298.2	0.215	0.783	0.454	0.539
25.0	298.2	0.334	0.664	0.601	0.390
25.0	298.2	0.448	0.549	0.707	0.283
25.0	298.2	0.542	0.451	0.772	0.210
25.0	298.2	0.606	0.381	0.805	0.165
25.0	298.2	0.705	0.264	0.834	0.102
25.0	298.2	0.782	0.154	0.827	0.053
25.0	298.2	0.797	0.065	0.750	0.020
25.0	298.2	0.664	0.044	0.554	0.012
25.0	298.2	0.521	0.040	0.396	0.010
25.0	298.2	0.351	0.027	0.239	0.006
25.0	298.2	0.084	0.005	0.049	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	0.165	0.833	0.375	0.618	hydrocarbon-rich phase
25.0	298.2	0.094	0.905	0.240	0.754	hydrocarbon-rich phase
25.0	298.2	0.069	0.930	0.184	0.811	hydrocarbon-rich phase
25.0	298.2	0.041	0.958	0.116	0.881	hydrocarbon-rich phase
25.0	298.2	0.427	0.570	0.690	0.301	water-rich phase
25.0	298.2	0.606	0.381	0.805	0.165	water-rich phase
25.0	298.2	0.802	0.065	0.757	0.020	water-rich phase
25.0	298.2	0.668	0.061	0.571	0.017	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)