IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Acetonitrile with 2-Methylbutane

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Components:
   (1) 2-Methylbutane; C5H12; [78-78-4]  NIST Chemistry WebBook for detail
   (2) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Pavlov, S.Yu.; Serafimov, L.A.; Pavlova, S.P.; Kofman, L.S., Zh. Fiz. Khim. 40, 2719 (1966).

Variables:
   Temperature = 275 K to 338 K

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

Experimental Remarks:

   The mutual solubilities of acetonitrile (1) and 2-methylbutane (2) in mass percent over the specified temperature range were reported in graphical form in the original publication. Numerical data were extracted from the published graphs by the compilers. UCST was reported as 65.0 °C (338.2 K, compilers).

Experimental Data:   (Notes on the Nomenclature)
  

Mutual solubility of acetonitrile (1) and 2-methylbutane (2)

t/°C	T/K	102 * Mass Fraction w1	Mole Fraction x1	Comment(s)
1.3	274.5	-	-	Hydrocarbon-rich phase
7.8	281.0	2.5	0.043	Hydrocarbon-rich phase
9.1	282.3	-	-	Hydrocarbon-rich phase
15.6	288.8	3.3	0.057	Hydrocarbon-rich phase
17.0	290.2	-	-	Hydrocarbon-rich phase
25.6	298.8	-	-	Hydrocarbon-rich phase
29.8	303.0	4.5	0.077	Hydrocarbon-rich phase
35.5	308.7	-	-	Hydrocarbon-rich phase
41.7	314.9	6.8	0.114	Hydrocarbon-rich phase
50.0	323.2	10.0	0.163	Hydrocarbon-rich phase
55.4	328.6	-	-	Hydrocarbon-rich phase
58.3	331.5	16.2	0.254	Hydrocarbon-rich phase
62.3	335.5	-	-	Hydrocarbon-rich phase
63.5	336.7	25.1	0.370	Hydrocarbon-rich phase
64.5	337.7	-	-	Hydrocarbon-rich phase
1.3	274.5	88.1	0.929	Acetonitrile-rich phase
7.8	281.0	-	-	Acetonitrile-rich phase
9.1	282.3	87.7	0.926	Acetonitrile-rich phase
15.6	288.8	-	-	Acetonitrile-rich phase
17.0	290.2	86.2	0.917	Acetonitrile-rich phase
25.6	298.8	83.8	0.901	Acetonitrile-rich phase
29.8	303.0	-	-	Acetonitrile-rich phase
35.5	308.7	80.0	0.876	Acetonitrile-rich phase
41.7	314.9	-	-	Acetonitrile-rich phase
50.0	323.2	-	-	Acetonitrile-rich phase
55.4	328.6	66.2	0.775	Acetonitrile-rich phase
58.3	331.5	-	-	Acetonitrile-rich phase
62.3	335.5	54.5	0.678	Acetonitrile-rich phase
63.5	336.7	-	-	Acetonitrile-rich phase
64.5	337.7	41.0	0.550	Acetonitrile-rich phase

Method/Apparatus/Procedure:
   The synthetic method was used. No experimental details were reported.

Source and Purity of Materials:
   (1) Source not specified; purity not specified; distilled; purity ≥99.80 mass. %; boiling point = 81.6 °C, n(20 °C, D) = 1.3442, d(20 °C, 4 °C) = 0.7828.
   (2) Source not specified; purity not specified; distilled through a column of 70 theoretical plates; purity ≥99.75 mass. %; n(20 °C, D) = 1.3538, d(20 °C, 4 °C) = 0.6197.

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

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