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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with 2,2-Dimethylpentane
Components:
(1) 2,2-Dimethylpentane; C7H16; [590-35-2]
NIST Chemistry WebBook
for detail
(2) Nitromethane; CH3NO2; [75-52-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Riccardi, R.; Franzosini, P.; Rolla, M., Z. Naturforsch. 23A, 1816-8 (1968); *Ferloni, P.; Riccardi, R., Int. Data Ser., Sel. Data Mixtures, Ser. A (2), 79 (1977).
Variables:
Temperature = 371 K to 376 K
Prepared By:
V. P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of nitromethane and 2,2-dimethylpentane
t/°C
T/K
10
2
* Mass Fraction w
1
(compiler)
Mole Fraction x
1
Comment(s)
97.3
370.5
27.6
0.385
Hydrocarbon-rich phase
97.3
370.5
-
-
Nitromethane-rich phase
97.7
370.9
-
-
Hydrocarbon-rich phase
97.7
370.9
74.8
0.830
Nitromethane-rich phase
97.7
370.9
-
-
Hydrocarbon-rich phase
97.7
370.9
74.6
0.828
Nitromethane-rich phase
99.6
372.8
-
-
Hydrocarbon-rich phase
99.6
372.8
69.0
0.785
Nitromethane-rich phase
99.9
372.9
32.5
0.441
Hydrocarbon-rich phase
99.9
372.9
-
-
Nitromethane-rich phase
101.4
374.6
38.8
0.510
Hydrocarbon-rich phase
101.4
374.6
-
-
Nitromethane-rich phase
101.9
375.1
-
-
Hydrocarbon-rich phase
101.9
375.1
60.9
0.791
Nitromethane-rich phase
101.9
375.1
-
-
Hydrocarbon-rich phase
101.9
375.1
56.5
0.681
Nitromethane-rich phase
102.1
375.3
46.3
0.586
Hydrocarbon-rich phase
102.1
375.3
-
-
Nitromethane-rich phase
102.3
375.5
48.6
0.608
Hydrocarbon-rich phase
102.3
375.5
-
-
Nitromethane-rich phase
102.4
376.6
51.1
0.635
Hydrocarbon-rich phase
102.4
376.6
51.5 (UCST)
0.635
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).