IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Acetonitrile with 1-Hydropentadecafluoroheptane

   (1) 1-Hydropentadecafluoroheptane; C7HF15; [375-83-7]  NIST Chemistry WebBook for detail
   (2) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail

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

   Temperature = 256 K to 317 K

Prepared By:
   Valerii P. Sazonov and Nikolai V. Sazonov

Experimental Remarks:

   The mutual solubility of acetonitrile and 1-hydropentadecafluoroheptane in volume fractions were reported over the temperature range in graphical form. Data presented here were extracted by the compilers from the reported graphs. Timmermans1 values of density acetonitrile ρ(25 °C) = 776.8 g·L-1, was used in the above conversions.

Experimental Data:   (Notes on the Nomenclature)
Mutual solubility of acetonitrile (1) and 1-hydropentadecafluoroheptane (2)
t/°CT/K102 * Mass Fraction w1Mole Fraction x1Ø1Ø1 NoteComment(s)
-17.1256.18.10.63916.4100Fluorohydrocarbon-rich phase
1.4274.69.30.67218.5100Fluorohydrocarbon-rich phase
6.4279.6---100Fluorohydrocarbon-rich phase
28.5301.7---100Fluorohydrocarbon-rich phase
28.6301.815.30.78328.6100Fluorohydrocarbon-rich phase
39.2312.422.10.85038.5100Fluorohydrocarbon-rich phase
42.5315.7---100Fluorohydrocarbon-rich phase
42.8316.028.50.89046.8100Fluorohydrocarbon-rich phase
43.7316.937.60.92357.1100Fluorohydrocarbon-rich phase
43.8317.0---100Fluorohydrocarbon-rich phase
-17.1256.1---100Acetonitrile-rich phase
1.4274.6---100Acetonitrile-rich phase
6.4279.689.30.99494.9100Acetonitrile-rich phase
28.5301.778.30.98688.9100Acetonitrile-rich phase
28.6301.8---100Acetonitrile-rich phase
39.2312.4---100Acetonitrile-rich phase
42.5315.755.70.96273.5100Acetonitrile-rich phase
42.8316.0---100Acetonitrile-rich phase
43.7316.9---100Acetonitrile-rich phase
43.8317.0--    (UCST)-100Acetonitrile-rich phase
   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 details were reported.

Source and Purity of Materials:
   (1) Source not specified; spectroscopic grade; not purified.
   (2) Prepared by the decarboxylation of perfluoro-n-octanoic acid; dried over phosphorus pent oxide and distilled on a 10 plate microhelipod column at a reflux ratio of 5/1; boiling point = 95 °C/100.1 kPa, p(25 °C)=1718 g·L-1.

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

   1. J. Timmermans, Physico-Chemical Constants of Pure Organic Compounds (Elsevier, New York, 1950).