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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with 2,2,4-Trimethylhexane
Components:
(1) Nitromethane; CH3NO2; [75-52-5]
NIST Chemistry WebBook
for detail
(2) 2,2,4-Trimethylhexane; C9H20; [16747-26-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Franzosini, P.; Riccardi, R.; Rolla, M., Ric. Sci. 38, 123-6 (1968).; *Ferloni, P.; Riccardi, R., Int. Data Ser., Sel. Data Mixtures, Ser. A(2), 84-90 (1977).
Variables:
Temperature = 372 K to 383 K
Prepared By:
V. P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of nitromethane and 2,2,4-trimethylhexane
t/°C
T/K
10
2
* Mass Fraction w
1
(compiler)
Mole Fraction x
1
Comment(s)
99.0
372.2
21.0
0.359
Hydrocarbon-rich phase
99.0
372.2
-
-
Nitromethane-rich phase
99.9
373.1
-
-
Hydrocarbon-rich phase
99.9
373.1
78.9
0.887
Nitromethane-rich phase
103.6
376.8
26.3
0.428
Hydrocarbon-rich phase
103.6
376.8
75.3
0.865
Nitromethane-rich phase
105.6
378.8
28.9
0.461
Hydrocarbon-rich phase
105.6
378.8
-
-
Nitromethane-rich phase
106.6
379.9
-
-
Hydrocarbon-rich phase
106.6
379.9
70.2
0.832
Nitromethane-rich phase
108.1
381.3
35.5
0.536
Hydrocarbon-rich phase
108.1
381.3
-
-
Nitromethane-rich phase
108.9
382.1
-
-
Hydrocarbon-rich phase
108.9
382.1
62.1
0.775
Nitromethane-rich phase
109.1
382.3
41.4
0.598
Hydrocarbon-rich phase
109.1
382.3
-
-
Nitromethane-rich phase
109.2
382.4
-
-
Hydrocarbon-rich phase
109.2
382.4
56.5
0.732
Nitromethane-rich phase
109.4
382.6
45.0
0.632
Hydrocarbon-rich phase
109.4
382.6
-
-
Nitromethane-rich phase
109.6
382.8
51.0
0.690
Hydrocarbon-rich phase
109.6
382.8
51.0 (UCST)
0.690
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).