IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Acetonitrile with Hexane

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Components:
   (1) Hexane; C6H14; [110-54-3]  NIST Chemistry WebBook for detail
   (2) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Sinegubova, S.I., Dissertation, Saratov University 1978.

Variables:
   Temperature = 279 K to 350 K

Prepared By:
   Valerii P. Sazonov and Nikolai V. Sazonov

Experimental Data:   (Notes on the Nomenclature)
  

Mutual solubility of acetonitrile (1) and hexane (2)

t/°C	T/K	102 * Mass Fraction w1	Mole Fraction x1 (compiler)	Comment(s)
6.0	279.2	-	-	Hydrocarbon-rich phase
11.5	284.7	2.0	0.041	Hydrocarbon-rich phase
16.1	289.3	-	-	Hydrocarbon-rich phase
19.9	293.1	-	-	Hydrocarbon-rich phase
23.9	297.1	3.0	0.061	Hydrocarbon-rich phase
25.0	298.2	3.7	0.075	Hydrocarbon-rich phase
45.8	319.0	6.0	0.118	Hydrocarbon-rich phase
50.7	323.9	-	-	Hydrocarbon-rich phase
61.1	334.3	10.0	0.189	Hydrocarbon-rich phase
66.7	339.9	-	-	Hydrocarbon-rich phase
72.0	345.2	-	-	Hydrocarbon-rich phase
73.0	346.2	20.0	0.344	Hydrocarbon-rich phase
75.3	348.5	-	-	Hydrocarbon-rich phase
76.1	349.3	-	-	Hydrocarbon-rich phase
76.3	349.5	30.0	0.474	Hydrocarbon-rich phase
76.9	350.1	36.9	0.551	Hydrocarbon-rich phase
77.0	350.2	40.0	0.583	Hydrocarbon-rich phase
6.0	279.2	92.5	0.963	Acetonitrile-rich phase
11.5	284.7	-	-	Acetonitrile-rich phase
16.1	289.3	91.1	0.956	Acetonitrile-rich phase
19.9	293.1	90.0*	0.950	Acetonitrile-rich phase
23.9	297.1	-	-	Acetonitrile-rich phase
25.0	298.2	88.3	0.941	Acetonitrile-rich phase
45.8	319.0	-	-	Acetonitrile-rich phase
50.7	323.9	80.2	0.895	Acetonitrile-rich phase
61.1	334.3	-	-	Acetonitrile-rich phase
66.7	339.9	70.0	0.831	Acetonitrile-rich phase
72.0	345.2	63.0	0.781	Acetonitrile-rich phase
73.0	346.2	-	-	Acetonitrile-rich phase
75.3	348.5	55.1	0.720	Acetonitrile-rich phase
76.1	349.3	50.1	0.678	Acetonitrile-rich phase
76.3	349.5	-	-	Acetonitrile-rich phase
76.9	350.1	45.0	0.632	Acetonitrile-rich phase
77.0	350.2	40.0	0.583 (UCST)	Acetonitrile-rich phase

Notes:
   ^*  Value corrected by compiler from the published graphs; reported in original as 80.0.

Method/Apparatus/Procedure:
   The synthetic method was used. Sealed ampoules were placed in a glass-walled thermostat. The temperature of the thermostat was increased gradually with periodic stirring and a preliminary determination of the clear-point temperature in every ampoule was made. A more precise value of the cloud-point temperature was determined by allowing the thermostat to cool. The determination was repeated several times.

Source and Purity of Materials:
   (1) Source not specified; pure grade product; distilled over anhydrous soda, boiling point = 81.6 °C, n(20 °C, D) = 1.3441, p(25 °C) = 777 g·L^–1.
   (2) Source not specified; for chromatography; not purified; boiling point = 68.8 °C, n(20 °C, D) = 1.3752, p(20 °C) = 660 g·L^–1.

Estimated Errors:

   Temperature: ± 0.2 K.

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