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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with 1,2-Ethanediol, Heptane and 1-Dodecanol
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) 1-Dodecanol; C12H26O; [112-53-8]
NIST Chemistry WebBook
for detail
(4) Heptane; C7H16; [142-82-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Gudkina, L. V.; dissertation, Novosibirsk Institute of Inorganic Chemistry, 1975.
Variables:
Temperature = 304 K to 313 K
Prepared By:
V. P. Sazonov
Experimental Remarks:
Solubility temperatures of the liquid phases were determined in quaternary mixtures with a constant mass content of (4) and a constant mass relationship of (1) and (2), respectively, 65.0:35.0 ratio.
Experimental Data:
(Notes on the Nomenclature)
Table 1. Solubility temperatures of the three liquid phases
t/°C
T/K
Mass Fraction w
1
Mass Fraction w
2
Mass Fraction w
3
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
Mole Fraction x
3
(compiler)
39.57
312.72
0.630
0.339
0.021
0.643
0.340
0.013
39.72
312.87
0.628
0.338
0.024
0.642
0.340
0.015
36.77
309.92
0.627
0.338
0.015
0.643
0.341
0.009
37.23
310.38
0.625
0.337
0.018
0.642
0.340
0.011
37.27
310.42
0.623
0.336
0.021
0.640
0.340
0.013
37.51
310.66
0.621
0.335
0.024
0.639
0.339
0.015
34.78
307.93
0.621
0.334
0.015
0.641
0.339
0.009
35.27
308.42
0.619
0.333
0.017
0.640
0.339
0.011
35.49
308.64
0.618
0.332
0.020
0.639
0.338
0.013
35.92
309.07
0.616
0.331
0.023
0.638
0.337
0.015
32.68
305.83
0.617
0.332
0.011
0.640
0.339
0.007
32.91
306.06
0.615
0.331
0.014
0.639
0.338
0.009
33.28
306.43
0.613
0.330
0.017
0.638
0.338
0.011
30.66
303.81
0.614
0.330
0.006
0.640
0.339
0.004
30.87
304.02
0.612
0.329
0.009
0.639
0.338
0.006
31.32
304.47
0.610
0.329
0.011
0.638
0.338
0.007
31.83
304.98
0.608
0.328
0.014
0.636
0.338
0.009
32.28
305.43
0.606
0.327
0.017
0.635
0.337
0.011
Table 2. Solubility temperatures of the two liquid phases
t/°C
T/K
Mass Fraction w
1
Mass Fraction w
2
Mass Fraction w
3
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
Mole Fraction x
3
(compiler)
37.58
310.73
0.642
0.345
0.003
0.651
0.344
0.002
38.21
311.36
0.640
0.344
0.006
0.650
0.343
0.004
38.37
311.52
0.638
0.343
0.009
0.648
0.343
0.006
39.09
312.24
0.634
0.341
0.015
0.646
0.342
0.009
39.32
312.47
0.632
0.340
0.018
0.645
0.341
0.011
36.11
309.26
0.635
0.342
0.003
0.648
0.343
0.002
36.28
309.43
0.633
0.341
0.006
0.647
0.343
0.004
36.41
309.56
0.631
0.340
0.009
0.646
0.342
0.006
36.62
309.77
0.629
0.339
0.012
0.644
0.341
0.008
34.09
307.24
0.629
0.338
0.003
0.646
0.342
0.002
34.22
307.37
0.627
0.337
0.006
0.645
0.341
0.004
34.42
307.57
0.625
0.336
0.009
0.644
0.340
0.006
34.72
307.87
0.623
0.335
0.012
0.643
0.340
0.007
32.03
305.18
0.622
0.335
0.003
0.644
0.341
0.002
32.12
305.27
0.620
0.334
0.006
0.642
0.340
0.004
32.17
305.32
0.618
0.333
0.009
0.641
0.340
0.006
30.58
303.73
0.616
0.331
0.003
0.642
0.339
0.002
Method/Apparatus/Procedure:
The synthetic method was used. Solubility temperatures of the liquid phases were determined both on heating and cooling of the mixtures, and the average temperature value obtained was taken. Measurements were carried out in a water thermostat.
Source and Purity of Materials:
(1) Source not specified; pure grade reagent; dried and twice distilled in glass packed column.
(2) Analytical purity; dried and twice distilled under vacuum; 0.03 mass % water by the Karl Fischer analysis.
(3) Source not specified; pure grade reagent; dried and twice distilled in glass packed column.
(4) Source not specified; pure grade reagent; dried and repeatedly distilled under vacuum.
Estimated Errors:
Temperature: ± 0.01 K.