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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with 2-Methyl-1-heptene
Components:
(1) Nitromethane; CH3NO2; [75-52-5]
NIST Chemistry WebBook
for detail
(2) 2-Methyl-1-heptene; C8H16; [15870-10-7]
NIST Chemistry WebBook
for detail
Original Measurements:
Riccardi, R.; Franzosini, P.; Rolla, M., Z. Naturforsch. 23A, 1816-8 (1968).
Variables:
Temperature = 344 K to 356 K
Prepared By:
V. P. Sazonov
Experimental Remarks:
The numerical data were not included in the original publication but were provided by Professor R. Riccardi at the request of the compiler.
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of nitromethane and 2-methyl-1-heptene
t/°C
T/K
10
2
* Mass Fraction w
1
(compiler)
Mole Fraction x
1
Comment(s)
70.5
343.7
17.2
0.277
Hydrocarbon-rich phase
70.5
343.7
-
-
Nitromethane-rich phase
71.6
344.8
-
-
Hydrocarbon-rich phase
71.6
344.8
79.7
0.878
Nitromethane-rich phase
74.8
348.0
22.7
0.351
Hydrocarbon-rich phase
74.8
348.0
-
-
Nitromethane-rich phase
79.1
352.3
-
-
Hydrocarbon-rich phase
79.1
352.3
72.6
0.830
Nitromethane-rich phase
81.5
354.7
33.3
0.479
Hydrocarbon-rich phase
81.5
354.7
-
-
Nitromethane-rich phase
82.3
355.5
-
-
Hydrocarbon-rich phase
82.3
355.5
63.3
0.760
Nitromethane-rich phase
82.6
355.8
38.9
0.539
Hydrocarbon-rich phase
82.6
355.8
-
-
Nitromethane-rich phase
83.0
356.2
42.9
0.580
Hydrocarbon-rich phase
83.0
356.2
-
-
Nitromethane-rich phase
83.2
356.4
47.8
0.627
Hydrocarbon-rich phase
83.2
356.4
55.6
0.697
Nitromethane-rich phase
83.2
356.4
-
-
Hydrocarbon-rich phase
83.2
356.4
- (UCST)
-
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 mole %; purification as above.
Estimated Errors:
Temperature: reproduced better than 0.1 K.
References:
1
P. Franzosini, Z. Naturforsch. 18A, 224 (1963).