IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Methanol with Heptane and Water

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Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Heptane (n-heptane); C7H16; [142-82-5]  NIST Chemistry WebBook for detail
   (3) Methanol (methyl alcohol); CH4O; [67-56-1]  NIST Chemistry WebBook for detail

Original Measurements:
   Budantseva, L.S.; Lesteva, T.M.; Nemstov, M.S., Zh. Fiz. Khim. 1976, 50, 1344. Deposited doc. 1976, VINITI 437-76.

Variables:
   Temperature = 293 K - 313 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	0.0000	0.999 91	0.0000	0.9995	hydrocarbon-rich phase
20	293.2	0.0010	0.9989	0.0031	0.9964	hydrocarbon-rich phase
20	293.2	0.0023	0.9976	0.0072	0.9922	hydrocarbon-rich phase
20	293.2	0.0043	0.9956	0.0133	0.9861	hydrocarbon-rich phase
20	293.2	0.0070	0.9929	0.0215	0.9779	hydrocarbon-rich phase
20	293.2	0.0110	0.9889	0.0336	0.9658	hydrocarbon-rich phase
20	293.2	0.0227	0.9771	0.0676	0.9314	hydrocarbon-rich phase
20	293.2	0.0485	0.9512	0.1373	0.8612	hydrocarbon-rich phase
20	293.2	0.0639	0.9361	0.1760	0.8240	hydrocarbon-rich phase
40	313.2	0.0000	0.999 87	0.0000	0.9993	hydrocarbon-rich phase
40	313.2	0.0013	0.9985	0.0041	0.9950	hydrocarbon-rich phase
40	313.2	0.0032	0.9966	0.0100	0.9889	hydrocarbon-rich phase
40	313.2	0.0054	0.9943	0.0168	0.9819	hydrocarbon-rich phase
40	313.2	0.0092	0.9906	0.0281	0.9704	hydrocarbon-rich phase
40	313.2	0.0154	0.9842	0.0467	0.9516	hydrocarbon-rich phase
40	313.2	0.0323	0.9673	0.0945	0.9036	hydrocarbon-rich phase
40	313.2	0.0496	0.9500	0.1400	0.8578	hydrocarbon-rich phase
40	313.2	0.0852	0.9143	0.2250	0.7725	hydrocarbon-rich phase
40	313.2	0.1180	0.8820	0.2950	0.7050	hydrocarbon-rich phase
20	293.2	0.0000	0.000 02	0.0000	0.000 003	hydrocarbon-poor phase
20	293.2	0.2350	0.000 10	0.1473	0.000 02	hydrocarbon-poor phase
20	293.2	0.4136	0.0005	0.2841	0.0001	hydrocarbon-poor phase
20	293.2	0.5892	0.0008	0.4468	0.0002	hydrocarbon-poor phase
20	293.2	0.7166	0.0034	0.5895	0.0009	hydrocarbon-poor phase
20	293.2	0.8020	0.0142	0.7075	0.0040	hydrocarbon-poor phase
20	293.2	0.8684	0.0496	0.8431	0.0154	hydrocarbon-poor phase
20	293.2	0.8670	0.1000	0.9053	0.0334	hydrocarbon-poor phase
20	293.2	0.7682	0.2318	0.9120	0.0880	hydrocarbon-poor phase
40	313.2	0.0000	0.000 06	0.0000	0.000 01	hydrocarbon-poor phase
40	313.2	0.2400	0.000 10	0.1508	0.000 02	hydrocarbon-poor phase
40	313.2	0.4462	0.0004	0.3119	0.0001	hydrocarbon-poor phase
40	313.2	0.6024	0.0016	0.4608	0.0004	hydrocarbon-poor phase
40	313.2	0.7154	0.0064	0.5902	0.0017	hydrocarbon-poor phase
40	313.2	0.8153	0.0269	0.7382	0.0078	hydrocarbon-poor phase
40	313.2	0.8594	0.0676	0.8502	0.0214	hydrocarbon-poor phase
40	313.2	0.8450	0.1225	0.8971	0.0416	hydrocarbon-poor phase
40	313.2	0.7327	0.2603	0.8845	0.1005	hydrocarbon-poor phase
40	313.2	0.6181	0.3819	0.8350	0.1650	hydrocarbon-poor phase

Method/Apparatus/Procedure:
   The method was described in Ref. 1. No more details were reported in the paper.

Source and Purity of Materials:
   (1) Source not specified.
   (2) Source not specified.
   (3) Source not specified.

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

References:
   ¹ L. S. Budantseva, T. M. Lesteva, and M. S. Nemtsov, Zh. Fiz. Khim. 49, 1849 (1975).

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