Compilation - Acetonitrile with Pentane (IUPAC SDS Volume 78)
SDS Volume (5169)
Volume 78. Acetonitrile Binary Systems, p None
Original Measurements
Sinegubova, S. I.; Ph.D. Dissertation, Saratov University 1978.
Variables:
Room Temp: 298 - 341 $\pu{K}$
Prepared by:
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:
- Source not specified; pure grade product; distilled over anhydrous soda, BP = 81.6°C, $n_{D}^{20}$ = 1.3441, $\rho^{25} = \pu{777 g L-1}$
- Source not specified; for chromatography; not purified; BP = 36.0°C, $n_{D}^{20}$ = 1.3578, $\rho^{20} = \pu{626 g L-1}$.
Estimated Errors:
Ambient temperature: ±0.2 K.
Components:
- Acetonitrile, $\ce{ C2H3N }$; [75-05-8] NIST WebBook
- Pentane, $\ce{ C5H12 }$; [109-66-0] NIST WebBook
Experimental Data
Mutual solubility of acetonitrile (1) and pentane (2)
| $T$ (°C) | $T$ ($\pu{K}$) | w1 | $x_{1}$ |
|---|---|---|---|
| 25.0 | 298.2 | 3.95 | 0.067 |
| 34.2 | 307.4 | - | - |
| 38.5 | 311.7 | 11.1 | 0.180 |
| 56.5 | 329.7 | - | - |
| 63.9 | 337.1 | - | - |
| 64.5 | 337.7 | 20.3 | 0.309 |
| 67.2 | 340.4 | - | - |
| 67.3 | 340.5 | 28.7 | 0.414 |
| 67.9 | 341.1 | - | - |
| 68.2 | 341.4 | 32.9 | 0.463 |
| 68.2 | 341.4 | - | - |
| 25.0 | 298.2 | 85.6 | 0.913 |
| 34.2 | 307.4 | 79.3 | 0.871 |
| 38.5 | 311.7 | - | - |
| 56.5 | 329.7 | 69.7 | 0.802 |
| 63.9 | 337.1 | 60.1 | 0.726 |
| 64.5 | 337.7 | - | - |
| 67.2 | 340.4 | 52.2 | 0.658 |
| 67.3 | 340.5 | - | - |
| 67.9 | 341.1 | 43.9 | 0.579 |
| 68.2 | 341.4 | - | - |
| 68.2 | 341.4 | - | - |


