IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitromethane with 1-Hydropentadecafluoroheptane

Components:
   (1) 1-Hydropentadecafluoroheptane; C7HF15; [375-83-7]  NIST Chemistry WebBook for detail
   (2) Nitromethane; CH3NO2; [75-52-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Konecky, J.O.; Deal, C.H., J. Phys. Chem. 67, 504-6 (1963).

Variables:
   Temperature = 312 K to 373 K

Prepared By:
   V. P. Sazonov

Experimental Remarks:

   The mutual solubility of nitromethane and 1-hydropentadecafluoroheptane in volume fractions are presented over the temperature range in graphical form. The data in the following table were extracted by the compiler from the reported graphs.

Experimental Data:   (Notes on the Nomenclature)

Mutual solubility of nitromethane and 1-hydropentadecafluoroheptane
t/°C	10² * Mass Fraction w₁ (compiler)	Mole Fraction x₁ (compiler)	Ø₁	Ø₁ Note	Comment(s)
38.5	6.0	0.279	8.9	2	Fluorohydrocarbon-rich phase
38.5	-	-	-	2	Nitromethane-rich phase
67.3	-	-	-	2	Fluorohydrocarbon-rich phase
67.3	86.4	0.975	90.6	2	Nitromethane-rich phase
72.8	-	-	-	2	Fluorohydrocarbon-rich phase
72.8	83.2	0.968	88.3	2	Nitromethane-rich phase
77.3	13.6	0.488	19.3	2	Fluorohydrocarbon-rich phase
77.3	-	-	-	2	Nitromethane-rich phase
91.5	-	-	-	2	Fluorohydrocarbon-rich phase
91.5	71.6	0.939	79.3	2	Nitromethane-rich phase
92.4	21.7	0.627	29.6	2	Fluorohydrocarbon-rich phase
92.4	-	-	-	2	Nitromethane-rich phase
98.2	-	-	-	2	Fluorohydrocarbon-rich phase
98.2	59.4	0.899	69.0	2	Nitromethane-rich phase
98.5	29.5	0.717	38.9	2	Fluorohydrocarbon-rich phase
98.5	-	-	-	2	Nitromethane-rich phase
99.4	-	-	-	2	Fluorohydrocarbon-rich phase
99.4	48.5	0.851	58.9	2	Nitromethane-rich phase
99.7	39.7	0.800	50.0	2	Fluorohydrocarbon-rich phase
99.7	-	-	-	2	Nitromethane-rich phase
99.7	-	-	-	2	Fluorohydrocarbon-rich phase
99.7	-	- (UCST)	-	2	Nitromethane-rich phase

Method/Apparatus/Procedure:
   The synthetic (cloud point) method using sealed Pyrex tubes was employed. All values reported are an average of at least three determinations agreeing within 0.2 °C or better. No further details were reported.

Source and Purity of Materials:
   (1) Source not specified; distilled on a ten plate microhelipod column at a reflux ratio of 5/1; b. p. = 101 °C/101.6 kPa.
   (2) Prepared by the decarboxylation of perfluorooctanoic acid; dried over phosphorus pentoxide and distilled on a ten plate microhelipod column at a reflux ratio of 5/1; b. p. = 95 °C/100.1 kPa, d(25 °C) = 1718 g·L^-1.

Estimated Errors:
   Solubility: Not reported.
   Temperature: Not reported.
   Pressure: Not reported.