SDS Volume (4875)
Volume 77. Nitroalkanes with Water or Organic Solvents: Binary and Multicomponent Systems, p None
Original Measurements
Francis, A. W.; J. Phys. Chem. 60, 20-7 (1956).
Variables:
Room Temp: 285 - 297 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
The synthetic method was used. Observations were made after vigorous shaking in glass-stoppered tubes (15 mL capacity) immersed in water baths in large Dewar flasks. Temperature was adjusted by adding small amounts of cooler or warmer water. Filling started with 5 mL of one reagent followed by small additions of the other two, usually alternately, to maintain a trace of lower or upper layer, until the composition of a plait point was reached or the tube was full (see Tables 1 and 2).
Source and Purity of Materials:
- Eastman Kodak Co., distilled with 30 cm column with reflux; BP = 114-115°C, MP = -78°C, $n_{D}^{20}$ = 1.3920, $\rho^{20} = \pu{1046.9 g L-1}$.
- Source not specified; purity not specified; purified by crystallization; MP = -13.3°C, $n_{D}^{20}$ = 1.4315, $\rho^{25} = \pu{1110.1 g L-1}$.
- Source not specified; purity not specified; purified by crystallization; MP = 22.7°C, $n_{D}^{24}$ = 1.4410, $\rho^{24} = \pu{832 g L-1}$.
Estimated Errors:
Ambient temperature: Not specified.
Mass concentration (m/v) (1): Not specified.
Components:
- Nitroethane, $\ce{ C2H5NO2 }$; [79-24-3] NIST WebBook
- 1,2-Ethanediol, $\ce{ C2H6O2 }$; [107-21-1] NIST WebBook
- 1-Dodecanol, $\ce{ C12H26O }$; [112-53-8] NIST WebBook
Experimental Data
Table 1. Solubility of nitroethane (1) 1,2-ethanediol (2) and 1-dodecanol (3)
| $T$ (°C) | $T$ ($\pu{K}$) | 100w1 | 100w2 | $x_{1}$ | $x_{2}$ |
|---|---|---|---|---|---|
| 12.0 | 285.2 | 3E+1 | 4E+1 | 0.33 | 0.54 |
| 14.0 | 287.2 | 83 | 6 | 0.88 | 0.08 |
| - | 287.2 | 29 | 13.5 | 0.42 | 0.238 |
| - | 287.2 | 26 | 26 | 0.34 | 0.41 |
| - | 287.2 | 23 | 47 | 0.25 | 0.62 |
| 16.0 | 289.2 | 82 | 8 | 0.86 | 0.10 |
| 16.0 | 289.2 | 54 | 22 | 0.60 | 0.29 |
| 16.0 | 289.2 | 54 | 14 | 0.64 | 0.20 |
| 16.0 | 289.2 | 4E+1 | 15 | 0.52 | 0.24 |
| 16.0 | 289.2 | 3E+1 | 42 | 0.33 | 0.55 |
| 16.0 | 289.2 | 22 | 51 | 0.23 | 0.65 |
| 16.0 | 289.2 | 19 | 45 | 0.22 | 0.62 |
| 16.5 | 289.7 | 54 | 23.5 | 0.59 | 0.31 |
| 20 | 293.2 | 75 | 12 | 0.79 | 0.15 |
| 20 | 293.2 | 54 | 7 | 0.69 | 0.11 |
| 20 | 293.2 | 46 | 31 | 0.50 | 0.40 |
| 20 | 293.2 | 35 | 45 | 0.36 | 0.56 |
| 20 | 293.2 | 27 | 53 | 0.27 | 0.65 |
| 20 | 293.2 | 22 | 68 | 0.20 | 0.76 |
| 20 | 293.2 | 2E+1 | 4E+1 | 0.24 | 0.57 |
| 20 | 293.2 | 15 | 8E+1 | 0.13 | 0.85 |
| 20 | 293.2 | 1E+1 | 25 | 0.15 | 0.46 |
| 21.0 | 294.2 | 24 | 61 | 0.23 | 0.71 |
| 24.0 | 297.2 | 75 | 12 | 0.79 | 0.15 |
| 24.0 | 297.2 | 54 | 3 | 0.72 | 0.05 |
| 24.0 | 297.2 | 5E+1 | 29.5 | 0.53 | 0.380 |
| 24.0 | 297.2 | 4E+1 | 41 | 0.41 | 0.51 |
| 24.0 | 297.2 | 32 | 55 | 0.31 | 0.64 |
| 24.0 | 297.2 | 19.5 | 55.5 | 0.202 | 0.694 |
| 24.0 | 297.2 | 19 | 64 | 0.18 | 0.75 |
| 24.0 | 297.2 | 16 | 36 | 0.20 | 0.55 |
| 24.0 | 297.2 | 13 | 8E+1 | 0.12 | 0.86 |
| 24.0 | 297.2 | 12 | 28 | 0.17 | 0.48 |
(a) Quadruple point temperature. The equilibrium of three liquid phases crystals of alcohol.
(b) Plait point of binodal curve.
(c) Subcol temperature. A subcol is a point in a ternary system where a third binodal curve meets by its plait point with an isotherm of a ridge.
(d) Col temperature. A col is a point in a ternary system where two separate binodal curves meet at their respective plait points.
(e) Metastable.
