IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: 2-Butanol 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) 2-Butanol (sec-butanol, sec-butyl alcohol, (RS)-2-butanol, dl-2-butanol, DL-2-butanol); C4H10O; [78-92-2]  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	0.114	0.880	0.142	0.828
25.0	298.2	0.217	0.770	0.255	0.683
25.0	298.2	0.366	0.607	0.391	0.489
25.0	298.2	0.418	0.548	0.430	0.426
25.0	298.2	0.505	0.446	0.485	0.323
25.0	298.2	0.587	0.345	0.520	0.231
25.0	298.2	0.654	0.245	0.521	0.147
25.0	298.2	0.703	0.153	0.498	0.082
25.0	298.2	0.723	0.078	0.452	0.037
25.0	298.2	0.661	0.000	0.322	0.000
25.0	298.2	0.190	0.000	0.054	0.000
25.0	298.2	0.088	0.005	0.023	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	0.627	0.289	0.527	0.183	organic-rich phase
25.0	298.2	0.376	0.596	0.400	0.478	organic-rich phase
25.0	298.2	0.139	0.852	0.170	0.785	organic-rich phase
25.0	298.2	0.153	0.000	0.042	0.000	water-rich phase
25.0	298.2	0.102	0.005	0.027	0.001	water-rich phase
25.0	298.2	0.044	0.000	0.011	0.000	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. Siswana, Fluid Phase Equilib. 74, 203 (1992).

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