Compilation - Thiophanes with Acetonitrle (IUPAC SDS Volume 78)
SDS Volume (5137)
Volume 78. Acetonitrile Binary Systems, p None
Original Measurements
Obolentsev, R. D.; Lebedeva, M. N.; Kreis, E. A.; Lyapina, N. K.; Parphenova, M. A.; Neftekhimiya 11, 893-901 (1971).
Variables:
Room Temp: 205 - 338 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
The synthetic method was used. Samples of (1) and (2) of weight about 0.2 g were placed in glass ampoules of length 3 to 4 cm and inner diameter of 4 mm. After cooling in a mixture of ice with salt ampoules were sealed. Three to four ampoules were attached to a thermometer and placed in a glass bath with glycerine (for heating) or with acetone and solid $\ce{CO2}$ (for cooling) with continuous stirring. The heating and cooling 2 K per minute. The UCST was determined by following the appearance and disappearance of the meniscus.
Source and Purity of Materials:
- Source not specified; purity not specified; dried and purified; BP = 81.6°C, $n_{D}^{20}$ = 1.3458.
- Synthesized in Institute of Chemistry (Upha, Russia).
Estimated Errors:
Ambient temperature: ±0.1 K (243 K to 373 K); ±0.5 K (below 243 K).
Components:
- Acetonitrile, $\ce{ C2H3N }$; [75-05-8] NIST WebBook
- Thiolane, $\ce{ C4H8S }$; [110-01-0] NIST WebBook
- 2-propylthiolane, $\ce{ C7H14S }$; [1551-34-4] NIST WebBook
- 2-butylthiophane, $\ce{ C8H16S }$; [1613-49-6] NIST WebBook
- 3-(2-methylpropyl)thiolane, $\ce{ C8H16S }$; [1551-23-1] NIST WebBook
- 2-Hexyltetrahydrothiophene, $\ce{ C10H20S }$; [876-37-9] NIST WebBook
- 2-Heptylthiolane, $\ce{ C11H22S }$; [24767-96-2] NIST WebBook
- 2-Nonylthiolane, $\ce{ C13H26S }$; [36011-32-2] NIST WebBook
Experimental Data
Upper critical solution temperatures of the binary systems acetonitrile (1) + thiophane (2)
| $T$ (°C) | $T$ ($\pu{K}$) | $T$ (°C) |
|---|---|---|
| -68 | 205 | 121.2 |
| -50 | 223 | 201-203 |
| -31 | 242 | 184.1 |
| -17.0 | 256.2 | 190.5 |
| 22.0 | 295.2 | 239-240 |
| 37.0 | 310.2 | 122 |
| 65.0 | 338.2 | 292-293 |
