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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with Water
Components:
(1) Nitromethane; CH3NO2; [75-52-5]
NIST Chemistry WebBook
for detail
(2) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Corelli, R.M., L'Aerotecnica (Italy) 30, 32-7 (1950).
Variables:
Temperature = 268 K to 377 K
Prepared By:
V. P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of nitromethane and water
t/°C
T/K
10
2
* Mass Fraction w
1
Mole Fraction x
1
(compiler)
Comment(s)
-5
268.2
8.965
0.0282
Water-rich phase
-5
268.2
-
-
Nitromethane-rich phase
1
274.2
-
-
Water-rich phase
1
274.2
99.00
0.9969
Nitromethane-rich phase
16
289.2
-
-
Water-rich phase
16
289.2
98.66
0.9560
Nitromethane-rich phase
18
291.2
10.53
0.0336
Water-rich phase
18
291.2
-
-
Nitromethane-rich phase
34.5
307.7
-
-
Water-rich phase
34.5
307.7
97.49
0.9198
Nitromethane-rich phase
37
310.2
12.55
0.0406
Water-rich phase
37
310.2
-
-
Nitromethane-rich phase
48.5
321.7
14.48
0.0476
Water-rich phase
48.5
321.7
-
-
Nitromethane-rich phase
57
330.2
16.08
0.0535
Water-rich phase
57
330.2
-
-
Nitromethane-rich phase
62
335.2
-
-
Water-rich phase
62
335.2
93.75
0.8158
Nitromethane-rich phase
68.5
341.7
18.97
0.0646
Water-rich phase
68.5
341.7
-
-
Nitromethane-rich phase
75.5
348.7
21.54
0.0750
Water-rich phase
75.5
348.7
-
-
Nitromethane-rich phase
76.5
349.7
22.33
0.0782
Water-rich phase
76.5
349.7
-
-
Nitromethane-rich phase
80
353.2
-
-
Water-rich phase
80
353.2
90.29
0.7330
Nitromethane-rich phase
85.5
358.7
25.92
0.0936
Water-rich phase
85.5
358.7
-
-
Nitromethane-rich phase
88.5
361.7
-
-
Water-rich phase
88.5
361.7
86.73
0.6586
Nitromethane-rich phase
91
364.2
-
-
Water-rich phase
91
364.2
84.86
0.6233
Nitromethane-rich phase
94
367.2
32.02
0.1221
Water-rich phase
94
367.2
-
-
Nitromethane-rich phase
96
369.2
-
-
Water-rich phase
96
369.2
81.99
0.5734
Nitromethane-rich phase
98
371.2
-
-
Water-rich phase
98
371.2
79.08
-0.5274
Nitromethane-rich phase
99.5
372.7
39.19
0.1598
Water-rich phase
99.5
372.7
-
-
Nitromethane-rich phase
102
375.2
45.20
0.1958
Water-rich phase
102
375.2
-
-
Nitromethane-rich phase
102.5
375.7
-
-
Water-rich phase
102.5
375.7
67.57
0.3808
Nitromethane-rich phase
103.6
376.8
59.60
0.3030
Water-rich phase
103.6
376.8
59.60
0.3030
Nitromethane-rich phase
Method/Apparatus/Procedure:
The synthetic method
1,2
was used. Initial mixtures of (1) and (2) were weighed into 10 mL test tubes. The sealed tubes were put into a heating bath filled with distilled water or aqueous glycerol or paraffin oil, at the required temperature. The bath and the submerged tube were heated until mixtures of (1) and (2) became homogeneous; heating was then stopped, and the complex cooled in air. While cooling, the tubes were observed. With the appearance of turbidity, the thermometer reading was recorded. The bath was then reheated and the tube shaken to determine the temperature when the turbidity disappeared. The average value between two determinations was accepted as mutual solubility temperature.
Source and Purity of Materials:
(1) Synthesized by method Kolbe from monochloro-acetic acid and sodium nitrite; dried and purified; b. p. = (100 to 101) °C,
d
(25 °C) = 1130 g·L
–1
.
(2) Not specified.
Estimated Errors:
Solubility: Not reported.
Temperature: Not reported.
Pressure: Not reported.
References:
1
W. Alexejew, Wied. Ann. 28, 306 (1886).
2
W. Rothmund, Z. Phys. Chem. 26, 433 (1898).