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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Acetonitrile with Cyclohexane
Components:
(1) Cyclohexane; C6H12; [110-82-7]
NIST Chemistry WebBook
for detail
(2) Acetonitrile; C2H3N; [75-05-8]
NIST Chemistry WebBook
for detail
Original Measurements:
Nagata I.; Katoh, K., Thermochim. Acta 39, 45 (1980).
Variables:
Temperature = 313 K and 323 K
Prepared By:
Valerii P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of acetonitrile (1) and cyclohexane (2)
t/°C
T/K
10
2
* Mass Fraction w
1
(compiler)
Mole Fraction x
1
Comment(s)
40.00
313.15
4.00
0.0787
Hydrocarbon-rich phase
50.00
323.15
6.15
0.1184
Hydrocarbon-rich phase
40.00
313.15
80.79
0.8961
Acetonitrile-rich phase
50.00
323.15
76.90
0.8722
Acetonitrile-rich phase
Method/Apparatus/Procedure:
The titration method was used. Component (1) was added from a burette to a known amount of (2) until the mixture became turbid. The upper face of an equilibrium vessel which was polished flat and fitted with a lid and Teflon O-ring held tightly by six bolts. The lid contained two feed tubes to introduce the second component, two sampling tubes, a thermistor and a pressure measuring tube connected to a mercury manometer. Nitrogen gas was used to pressurize the lower sampling tube, so that the mixture could not enter into its during the mixing process. During titration, the samples were maintained at a desired temperature by means of a water thermostat.
Source and Purity of Materials:
(1) Source not specified; reagent grade; not purified;
n
(25 °C, D) = 1.34170.
(2) Source not specified; spectrograde; not purified;
n
(25 °C, D) = 1.42352.
Estimated Errors:
Temperature: ± 0.01 K.