Nitromethane with 1-Heptanol and Water (IUPAC SDS Volume 72)

SDS Volume

Volume 72. Nitromethane with Water or Organic Solvents: Ternary and Quaternary Systems, p 1513

Source Publication

Sazonov, V. P.; Zh. Fiz. Khim. 42, 3094-6 (1968).

Conditions:

Room Temp: 292 - 313 $\pu{K}$

Compilers:

N.V. Sazonov, V.P. Sazonov

Methodology:

The synthetic method (Alekseev [1]) was used. Ampoules with given amount of (1), (2) and (3) were heated with vigorous stirring to a temperature somewhat higher than the phase transition temperature and then were slowly cooled till turbidity appeared. Then the turbidity disappearance temperature was determined when heated at a slow rate.

Sample Information:
  1. Source not specified; pure grade reagent; dried and repeatedly distilled in a packed glass column; $n_{D}^{20}$ = 1.3819, $d_{4}^{20}$ = 1.1380.
  2. Source not specified; pure grade reagent; dried and repeatedly distilled at vacuum; $n_{D}^{20}$ = 1.4248, $d_{4}^{20}$ = 0.8219.
  3. Twice distilled.
Measurement Errors:

Ambient temperature: ±0.01 K.

Methodology Citation

1 Alekseev, V. F.; Zh. Russ. Fiz. -Khim. O-va 8, 249 (1876).

System Components:
  1. Nitromethane, $\ce{ CH3NO2 }$; [75-52-5] NIST WebBook
  2. 1-Heptanol, $\ce{ C7H16O }$; [111-70-6] NIST WebBook
  3. Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data

The temperatures of phase transitions were determined in ternary mixtures with a constant weight content of (3), respectively, 1.0, 2.0, 4.0, 5.0, 6.0, 20.0, 40.0 and 60.0 mass %. L1 nitromethane-rich phase, L2 alcohol-rich phase, L3 water-rich phase. The phase which is being dissolved is indicated in the table.
The compositions of coexistent three liquid phases at 22°C, 25°C, and 29°C are also presented in graphical form.

$T$ (°C) $T$ ($\pu{K}$) w1 w2 $x_{1}$ $x_{2}$
23.05296.20 0.81600.1440 0.79450.0736
25.45298.60 0.78720.1728 0.77670.0896
23.05296.20 0.80750.1425 0.76780.0712
26.60299.75 0.76000.1900 0.73850.0970
28.45301.60 0.71250.2375 0.70780.1239
23.06296.21 0.79900.1410 0.74240.0688
26.60299.75 0.75200.1880 0.71350.0937
28.45301.60 0.70500.2350 0.68340.1196
29.32302.47 0.65800.2820 0.65190.1467
29.64302.79 0.61100.3290 0.61900.1751
29.70302.85 0.56400.3760 0.58460.2047
29.72302.87 0.54050.3995 0.56680.2201
29.72a302.87 0.51700.4230 0.54860.2357
21.90295.05 0.20000.6000 0.16770.2643
23.40296.55 0.68000.1200 0.47870.0444
24.85298.00 0.24000.5600 0.19810.2428
26.74299.89 0.64000.1600 0.45660.0600
27.05300.20 0.28000.5200 0.22750.2220
28.42301.57 0.32000.4800 0.25610.2018
28.51301.66 0.60000.2000 0.43400.0760
29.21302.36 0.36000.4400 0.28380.1822
29.39302.54 0.56000.2400 0.41070.0925
29.54302.69 0.40000.4000 0.31070.1632
29.66302.81 0.52000.2800 0.38670.1094
29.70302.85 0.44000.3600 0.33680.1447
29.70302.85 0.48000.3200 0.36210.1268
29.72a302.87 0.46000.3400 0.34950.1357
20.40293.55 0.15000.4500 0.08620.1357
23.30296.45 0.18000.4200 0.10250.1257
24.00297.15 0.51000.0900 0.26670.0247
26.45299.60 0.21000.3900 0.11870.1157
27.24300.39 0.48000.1200 0.25290.0332
27.61300.76 0.24000.3600 0.13450.1060
28.78301.93 0.27000.3300 0.15010.0964
28.88302.03 0.45000.1500 0.23890.0418
29.39302.54 0.30000.3000 0.16550.0869
29.51302.66 0.42000.1800 0.22470.0505
29.66302.81 0.33000.2700 0.18070.0776
29.70302.85 0.39000.2100 0.21020.0595
29.71302.86 0.34500.2550 0.18810.0730
29.71302.86 0.37800.2220 0.20440.0630
29.72a302.87 0.36000.2400 0.19550.0685
19.10292.25 0.36000.0400 0.14928.7 x 10-3
21.05294.20 0.14000.2600 0.06060.0592
24.40297.55 0.16000.2400 0.06900.0544
25.31298.46 0.34000.0600 0.14140.0131
26.95300.10 0.18000.2200 0.07730.0496
28.15301.30 0.32000.0800 0.13360.0176
28.48301.63 0.20000.2000 0.08560.0449
29.33302.48 0.22000.1800 0.09370.0403
29.34302.49 0.30000.1000 0.12580.0220
29.70302.85 0.28000.1200 0.11790.0265
29.71302.86 0.25000.1500 0.10590.0334
29.71302.86 0.27000.1300 0.11390.0288
29.72a302.87 0.26000.1400 0.10990.0311

(*) These data were extracted graphically by the compilers.

(a) Critical opalescence.

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