IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Nitromethane with Methylcyclohexane

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Components:
   (1) Nitromethane; CH3NO2; [75-52-5]  NIST Chemistry WebBook for detail
   (2) Methylcyclohexane; C7H14; [108-87-2]  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 = 345 K to 370 K

Prepared By:
   V. P. Sazonov

Experimental Data:   (Notes on the Nomenclature)
  

Mutual solubility of nitromethane and methylcyclohexane

t/°C	T/K	102 * Mass Fraction w1 (compiler)	Mole Fraction x1	Comment(s)
72.2	345.4	10.4	0.157	Hydrocarbon-rich phase
72.2	345.4	-	-	Nitromethane-rich phase
76.8	350.0	-	-	Hydrocarbon-rich phase
76.8	350.0	82.4	0.883	Nitromethane-rich phase
77.7	351.0	-	-	Hydrocarbon-rich phase
77.7	351.0	83.0	0.887	Nitromethane-rich phase
78.2	351.4	12.7	0.190	Hydrocarbon-rich phase
78.2	351.4	-	-	Nitromethane-rich phase
81.2	354.4	14.2	0.210	Hydrocarbon-rich phase
81.2	354.4	-	-	Nitromethane-rich phase
87.3	360.5	-	-	Hydrocarbon-rich phase
87.3	360.5	76.5	0.840	Nitromethane-rich phase
90.6	363.8	-	-	Hydrocarbon-rich phase
90.6	363.8	72.9	0.812	Nitromethane-rich phase
91.0	364.2	22.4	0.317	Hydrocarbon-rich phase
91.0	364.2	-	-	Nitromethane-rich phase
91.9	365.1	23.7	0.333	Hydrocarbon-rich phase
91.9	365.1	-	-	Nitromethane-rich phase
93.2	366.4	27.4	0.378	Hydrocarbon-rich phase
93.2	366.4	-	-	Nitromethane-rich phase
94.3	367.5	-	-	Hydrocarbon-rich phase
94.3	367.5	66.8	0.764	Nitromethane-rich phase
95.4	368.6	32.7	0.439	Hydrocarbon-rich phase
95.4	368.6	-	-	Nitromethane-rich phase
96.0	369.2	-	-	Hydrocarbon-rich phase
96.0	369.2	60.0	0.707	Nitromethane-rich phase
96.4	369.6	38.0	0.496	Hydrocarbon-rich phase
96.4	369.6	-	-	Nitromethane-rich phase
96.6	369.8	40.6	0.524	Hydrocarbon-rich phase
96.6	369.8	-	-	Nitromethane-rich phase
96.6	369.8	42.7	0.545	Hydrocarbon-rich phase
96.6	369.8	-	-	Nitromethane-rich phase
96.9	370.1	44.5	0.563	Hydrocarbon-rich phase
96.9	370.1	-	-	Nitromethane-rich phase
97.0	370.2	-	-	Hydrocarbon-rich phase
97.0	370.2	53.9	0.653	Nitromethane-rich phase
97.1	370.3	48.0	0.600	Hydrocarbon-rich phase
97.1	370.3	48.0 (UCST)	0.600	Nitromethane-rich phase

Method/Apparatus/Procedure:
   The synthetic method¹ 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 P₂O₅ 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).

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Last updated: February 18, 2015 (Created: August 17, 2007)