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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with 1,2-Ethanediol and 2-Methoxy-2-methylpropane
Components:
(1) Nitromethane; CH3NO2 ; [75-52-5]
NIST Chemistry WebBook
for detail
(2) 1,2-Ethanediol; C2H6O2 ; [107-21-1]
NIST Chemistry WebBook
for detail
(3) 2-Methoxy-2-methylpropane; C5H12O; [1634-04-4]
NIST Chemistry WebBook
for detail
Original Measurements:
Kubicek, V.; Novak, J. P. and Matous, J.; Collect. Czech. Chem. Commun. 58, 983-95 (1993).
Variables:
Temperature = 293 K
Prepared By:
V. P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Table 1. Mutual solubility of nitromethane, 1,2-ethanediol and 2-methoxy2-methylpropane
t/°C
T/K
Mass Fraction w
1
(compiler)
Mass Fraction w
2
(compiler)
Mole Fraction x
1
Mole Fraction x
2
20
293
0.115
0.772
0.121
0.797
20
293
0.230
0.097
0.291
0.120
20
293
0.292
0.487
0.316
0.518
20
293
0.366
0.319
0.408
0.349
20
293
0.354
0.192
0.413
0.220
20
293
0.366
0.522
0.383
0.536
20
293
0.419
0.440
0.441
0.456
20
293
0.493
0.339
0.523
0.354
20
293
0.682
0.165
0.718
0.171
Table 2. Compositions of equilibrium liquid phases ternary system
t/°C
T/K
Mass Fraction w
1
(compiler)
Mass Fraction w
2
(compiler)
Mole Fraction x
1
Mole Fraction x
2
Comment(s)
20
293
0.143
0.072
0.189
0.094
nitromethane-rich phase
20
293
0.260
0.125
0.322
0.152
nitromethane-rich phase
20
293
0.354
0.198
0.412
0.227
nitromethane-rich phase
20
293
0.378
0.251
0.429
0.280
nitromethane-rich phase
20
293
0.590
0.243
0.625
0.253
nitromethane-rich phase
20
293
0.743
0.137
0.773
0.140
nitromethane-rich phase
20
293
0.862
0.088
0.877
0.088
nitromethane-rich phase
20
293
0.076
0.815
0.080
0.841
glycol-rich phase
20
293
0.134
0.735
0.141
0.763
glycol-rich phase
20
293
0.204
0.637
0.217
0.666
glycol-rich phase
20
293
0.244
0.576
0.261
0.606
glycol-rich phase
20
293
0.352
0.540
0.368
0.554
glycol-rich phase
20
293
0.302
0.639
0.311
0.647
glycol-rich phase
20
293
0.276
0.703
0.281
0.704
glycol-rich phase
Method/Apparatus/Procedure:
Two methods were used. The solubility curve was determined by the titration method. The compositions of equilibrium liquid phases were determined by the analytical method with the apparatus described in Kubicek
et al
.
1
Composition: ± 0.001 mole fraction.
Source and Purity of Materials:
(1) Xenon (Poland); dried with sodium and distilled on a packed column with 40 theoretical plates;
n
(20 °C, D) = 1.3820, ρ(20 °C) = 1138.2 g · L
-1
.
(2) Lachema (Czech); not purified; stored over Dusimo S4 molecular sieve and its water content monitored by the Karl Fischer method during the measurement;
n
(20 °C, D) = 1.4297, ρ(20 °C) = 1109.5 g·L
-1
.
(3) Obtained from the Synthetic Rubber Research Institute (Czech); dried with sodium and distilled on a packed column; 0.005 mass % of water by the Karl Fischer analysis;
n
(20 °C, D) = 1.3688, ρ(20 °C) = 740.3 g·L
-1
.
Estimated Errors:
References:
1
V. Kubicek, J. Matous, and J. P. Novak, Collect. Czech. Chem. Commun. 57, 2021 (1992).