SDS Volume
Volume 78. Acetonitrile Binary Systems, p 1059
Source Publication
Chekhova, G. N.; Ph.D. Dissertation, Novosibirsk Institute of Inorganic Chemistry, Russia, 1975.
Conditions:
Room Temp: 229 - 444 $\pu{K}$
Compilers:
Methodology:
The synthetic method was used. Solutions of various compositions were located in glass vessels and placed in a cooling mixture. The change of temperature was measured by the thermocouple. No experimental details given.
Sample Information:
- Source not specified; for chromatography; not purified; MP = -42.2°C.
- Source not specified; purified by the recrystallization; MP = 170.3°C.
Measurement Errors:
Ambient temperature: ±0.2 K.
System Components:
- Acetonitrile, $\ce{ C2H3N }$; [75-05-8] NIST WebBook
- 1,4-Benzenediol, $\ce{ C6H6O2 }$; [123-31-9] NIST WebBook
Experimental Data
No region of liquid-liquid immiscibility was observed. A full solid-liquid phase diagram in mole percent over the specified temperature range was reported in the original publication.
A eutectic was reported at -44.5°C (228.7 K, compilers) at x1 = 0.975 (100 w1 = 93.6, compilers).
| $T$ (°C) | $T$ ($\pu{K}$) | $x_{1}$ | 100w1 |
|---|---|---|---|
| 170.3 | 443.5 | 0.000 | 0.0 |
| 169.9 | 443.1 | 0.011 | 0.4 |
| 169.2 | 442.4 | 0.049 | 1.9 |
| 166.5 | 439.7 | 0.109 | 4.4 |
| 163.3 | 436.5 | 0.157 | 6.5 |
| 161.2 | 434.4 | 0.192 | 8.1 |
| 156.5 | 429.7 | 0.240 | 10.5 |
| 156.0 | 429.2 | 0.246 | 10.8 |
| 149.1 | 422.3 | 0.341 | 16.2 |
| 142.0 | 415.2 | 0.396 | 19.6 |
| 134.0 | 407.2 | 0.454 | 23.7 |
| 124.1 | 397.3 | 0.523 | 29.0 |
| 103.7 | 376.9 | 0.625 | 39.3 |
| 97.5 | 370.7 | 0.679 | 44.1 |
| 91.1 | 364.3 | 0.720 | 48.9 |
| 89.8 | 363.0 | 0.734 | 50.7 |
| 70.1 | 343.3 | 0.833 | 65.0 |
| 50.0 | 323.2 | 0.895 | 76.1 |
| 20.0 | 293.2 | 0.952 | 88.1 |
| -44.5 | 228.7 | 0.975 | 93.6 |
| -43.3 | 229.9 | 0.996 | 98.9 |
| -42.2 | 231.0 | 1.000 | 100.0 |
