SDS Volume (4473)
Volume 72. Nitromethane with Water or Organic Solvents: Ternary and Quaternary Systems, p None
Original Measurements
Sazonov, V. P.; Chernysheva, M. F.; Zh. Obshch. Khim. 46, 219 (1976).
Chernysheva, M. F.; Ph.D. Dissertation, Novosibirsk Institute of Inorganic Chemistry, Russia, 1982.
Variables:
Room Temp: 291 - 322 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
The synthetic method (Alekseev [1]) was used. Ampoules containing mixtures were suspended from a vertical roller linked to a shaking machine, which switched on at definite time intervals. Water bath temperature was controlled with a proportional temperature regulator and checked with mercury thermometers. Close to a phase transition, heating or cooling was effected at 0.03 °C/hr. Solubility temperature of the liquid phase was determined both with heating and cooling, and the average taken.
Source and Purity of Materials:
- Source not specified; pure grade reagent; dried and twice distilled on a packed column of 20 theoretical plates; no impurities detectable by gas chromatography.
- Source not specified, pure grade reagent; dried and distilled under vacuum; 99.5 mole% purity.
- Source not specified, analytical purity; purified by recrystallization; MP = 80.2°C.
Estimated Errors:
Ambient temperature: ±0.02 K for liquid phase and ±0.03 K for solid phase.
References
1 Alekseev, V. F.; Zh. Russ. Fiz. -Khim. O-va 8, 249 (1876).
Components:
- Nitromethane, $\ce{ CH3NO2 }$; [75-52-5] NIST WebBook
- 1-Nonanol, $\ce{ C9H20O }$; [143-08-8] NIST WebBook
- Naphthalene, $\ce{ C10H8 }$; [91-20-3] NIST WebBook
Experimental Data
The temperatures of phase transitions were determined in ternary mixtures with a constant mass content of (3), respectively 25.0, 30.0, and 40 mass %, and also in ternary mixtures with a constant mass relationship of (1) and (2) as 20.0:80.0, 40.0:60.0, 55.0:45.0, 70.0:30.0, and 85.0:15.0, respectively. L1 nitromethane-rich phase; L2 alcohol-rich phase; S solid naphthalene. The phase which is being dissolved is indicated in the table.
Table 1. Temperatures of phase transition L1 +L2+ S ↔L + S
| $T$ (°C) | $T$ ($\pu{K}$) | w1 | w2 | $x_{1}$ | $x_{2}$ |
|---|---|---|---|---|---|
| 18.17 | 291.32 | 0.6750 | 0.0750 | 0.8174 | 0.0384 |
| 21.09 | 294.24 | 0.1500 | 0.6000 | 0.2868 | 0.4855 |
| 21.45 | 294.60 | 0.6374 | 0.1126 | 0.7927 | 0.0592 |
| 22.83 | 295.98 | 0.1875 | 0.5625 | 0.3443 | 0.4371 |
| 23.10 | 296.25 | 0.6000 | 0.1500 | 0.7667 | 0.0812 |
| 23.84 | 296.99 | 0.2250 | 0.5250 | 0.3974 | 0.3923 |
| 24.00 | 297.15 | 0.5625 | 0.1875 | 0.7393 | 0.1042 |
| 24.39 | 297.54 | 0.2625 | 0.4875 | 0.4465 | 0.3510 |
| 24.54 | 297.69 | 0.5250 | 0.2250 | 0.7102 | 0.1287 |
| 24.73 | 297.88 | 0.3000 | 0.4500 | 0.4922 | 0.3124 |
| 24.76 | 297.91 | 0.4875 | 0.2625 | 0.6793 | 0.1548 |
| 24.84 | 297.99 | 0.4500 | 0.3000 | 0.6465 | 0.1824 |
| 24.88 | 298.03 | 0.4123 | 0.3377 | 0.6115 | 0.2119 |
| 24.88 | 298.03 | 0.3378 | 0.4122 | 0.5351 | 0.2763 |
| 24.92 | 298.07 | 0.3750 | 0.3750 | 0.5745 | 0.2431 |
| 21.14 | 294.29 | 0.1402 | 0.5598 | 0.2696 | 0.4556 |
| 21.52 | 294.77 | 0.5950 | 0.1050 | 0.7606 | 0.0568 |
| 22.74 | 295.89 | 0.1752 | 0.5248 | 0.3244 | 0.4111 |
| 23.01 | 296.16 | 0.5600 | 0.1400 | 0.7348 | 0.0777 |
| 23.88 | 297.03 | 0.2100 | 0.4900 | 0.3749 | 0.3701 |
| 24.02 | 297.17 | 0.5257 | 0.1743 | 0.7082 | 0.0993 |
| 24.44 | 297.59 | 0.2449 | 0.4551 | 0.4220 | 0.3318 |
| 24.53 | 297.68 | 0.4900 | 0.2100 | 0.6789 | 0.1232 |
| 24.73 | 297.88 | 0.2800 | 0.4200 | 0.4662 | 0.2959 |
| 24.77 | 297.92 | 0.4550 | 0.2450 | 0.6486 | 0.1478 |
| 24.88 | 298.03 | 0.3150 | 0.3850 | 0.5074 | 0.2674 |
| 24.89 | 298.04 | 0.4200 | 0.2800 | 0.6164 | 0.1739 |
| 24.91 | 298.06 | 0.3500 | 0.3500 | 0.5461 | 0.2310 |
| 24.92 | 298.07 | 0.3850 | 0.3150 | 0.5823 | 0.2016 |
| 20.86 | 294.01 | 0.5099 | 0.0901 | 0.6904 | 0.0517 |
| 21.20 | 294.35 | 0.1201 | 0.4799 | 0.2338 | 0.3953 |
| 22.83 | 295.98 | 0.1503 | 0.4497 | 0.2830 | 0.3583 |
| 22.85 | 296.00 | 0.4801 | 0.1199 | 0.6656 | 0.0703 |
| 23.81 | 296.96 | 0.1799 | 0.4201 | 0.3282 | 0.3243 |
| 24.00 | 297.15 | 0.4500 | 0.1500 | 0.6392 | 0.0902 |
| 24.41 | 297.56 | 0.2101 | 0.3899 | 0.3715 | 0.2917 |
| 24.52 | 297.67 | 0.4200 | 0.1800 | 0.6117 | 0.1109 |
| 24.68 | 297.83 | 0.3900 | 0.2100 | 0.5827 | 0.1327 |
| 24.71 | 297.86 | 0.2400 | 0.3600 | 0.4118 | 0.2613 |
| 24.83 | 297.98 | 0.2699 | 0.3301 | 0.4498 | 0.2327 |
| 24.85 | 298.00 | 0.3612 | 0.2388 | 0.5534 | 0.1548 |
| 24.85 | 298.00 | 0.3301 | 0.2699 | 0.5200 | 0.1799 |
| 24.88 | 298.03 | 0.3000 | 0.3000 | 0.4859 | 0.2056 |
| 21.30 | 294.45 | 0.6829 | 0.1205 | 0.8252 | 0.0617 |
| 21.30 | 294.45 | 0.6638 | 0.1172 | 0.8118 | 0.0606 |
| 21.30 | 294.45 | 0.6469 | 0.1141 | 0.7996 | 0.0597 |
| 21.30 | 294.45 | 0.6293 | 0.1111 | 0.7867 | 0.0587 |
| 24.52 | 297.67 | 0.5316 | 0.2278 | 0.7159 | 0.1298 |
| 24.52 | 297.67 | 0.5181 | 0.2220 | 0.7041 | 0.1277 |
| 24.90 | 298.05 | 0.4069 | 0.3330 | 0.6058 | 0.2098 |
| 24.90 | 298.05 | 0.3963 | 0.3242 | 0.5945 | 0.2058 |
| 24.70 | 297.85 | 0.3042 | 0.4563 | 0.4976 | 0.3158 |
| 24.70 | 297.85 | 0.2951 | 0.4426 | 0.4859 | 0.3084 |
| 21.12 | 294.27 | 0.1600 | 0.6401 | 0.3042 | 0.5148 |
| 21.12 | 294.27 | 0.1559 | 0.6237 | 0.2971 | 0.5029 |
| 21.10 | 295.25 | 0.1480 | 0.5921 | 0.2834 | 0.4796 |
(a) Critical opalescence


