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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with Cyclohexane
Components:
(1) Nitromethane; CH3NO2; [75-52-5]
NIST Chemistry WebBook
for detail
(2) Cyclohexane; C6H12; [110-82-7]
NIST Chemistry WebBook
for detail
Original Measurements:
Riccardi, R.; Franzosini, P.; Rolla, M., Z. Naturforsch. 23A, 1816-8 (1968); *Spinolo, G., Int. Data Ser., Sel. Data Mixtures, Ser. A, (1) and (2), 25-29 (1981) and (1982).
Variables:
Temperature = 352 K to 366 K
Prepared By:
V. P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of nitromethane and cyclohexane
t/°C
T/K
10
2
* Mass Fraction w
1
(compiler)
Mole Fraction x
1
Comment(s)
79.1
352.3
-
-
Hydrocarbon-rich phase
79.1
352.3
80.6
0.851
Nitromethane-rich phase
81.7
354.9
18.8
0.242
Hydrocarbon-rich phase
81.7
354.9
-
-
Nitromethane-rich phase
86.4
359.6
23.7
0.300
Hydrocarbon-rich phase
86.4
359.6
-
-
Nitromethane-rich phase
89.6
362.8
-
-
Hydrocarbon-rich phase
89.6
362.8
70.8
0.770
Nitromethane-rich phase
90.9
363.2
29.8
0.369
Hydrocarbon-rich phase
90.9
363.2
-
-
Nitromethane-rich phase
91.9
365.1
36.0
0.437
Hydrocarbon-rich phase
91.9
365.1
-
-
Nitromethane-rich phase
92.3
365.5
-
-
Hydrocarbon-rich phase
92.3
365.5
62.4
0.696
Nitromethane-rich phase
92.3
365.5
-
-
Hydrocarbon-rich phase
92.3
365.5
57.1
0.647
Nitromethane-rich phase
92.4
365.6
41.3
0.492
Hydrocarbon-rich phase
92.4
365.6
-
-
Nitromethane-rich phase
92.5
365.7
46.2
0.542
Hydrocarbon-rich phase
92.5
365.7
-
-
Nitromethane-rich phase
92.6
365.8
50.0
0.580
Hydrocarbon-rich phase
92.6
365.8
50.0 (UCST)
0.580
Nitromethane-rich phase
Method/Apparatus/Procedure:
The synthetic method
1
was used. Tubes were filled under vacuum with known masses of degassed and moisture-free components, sealed, and then placed in a thermostat bath filled with paraffin oil. The mixtures in the tubes were shaken by a Chemap vibromixer type E-1. Temperatures were measured with Degussa Pt resistance thermometers, which were checked against standards. Phase changes (cloud points) were observed as mixtures were cooled.
Source and Purity of Materials:
(1) Fluka AG; purity 99 mole %; fractionally distilled, degassed and finally distilled through a P
2
O
5
filled tube.
(2) Fluka AG; purity 99.99 mole %; purification as above.
Estimated Errors:
Temperature: reproduced better than 0.1 K.
References:
1
P. Franzosini, Z. Naturforsch. 18A, 224 (1963).