IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Acetonitrile with Heptane

Components:
   (1) Heptane; C7H16; [142-82-5]  NIST Chemistry WebBook for detail
   (2) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Lakhanpal, M.L.; Mandal, N.J.; Ahuja, S.C., Indian J. Chem. 20A, 1008 (1981).

Variables:
   Temperature = 298 K to 321 K

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

Experimental Data:   (Notes on the Nomenclature)

Mutual solubility of acetonitrile (1) and heptane (2)
t/°C	T/K	10² * Mass Fraction w₁ (compiler)	Mole Fraction x₁	Comment(s)
25.0	298.2	4.87	0.1110	Hydrocarbon-rich phase
26.9	300.1	5.23	0.1187	Hydrocarbon-rich phase
48.2	321.4	7.05	0.1562	Hydrocarbon-rich phase
25.0	298.2	90.07	0.9568	Acetonitrile-rich phase
26.9	300.1	89.69	0.9550	Acetonitrile-rich phase
48.2	321.4	87.04	0.9425	Acetonitrile-rich phase

Method/Apparatus/Procedure:
   The mutual solubilities of the components were determined with the help of Ziess interferometer. No experimental details were reported.

Source and Purity of Materials:
   (1) Source not specified; pure grade; twice distilled, first over P₂O₅, then over anhydrous potassium carbonate, collected the fraction at 80 °C.
   (2) Veb Laborchemie Apolda, Germany; pure grade; dried over anhydrous CaCl₂ and distilled over sodium; collected the fraction distilling at 98.4 °C.

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