IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Acetonitrile with Potassium iodide
Components:
   (1) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail
   (2) Potassium iodide; KI; [7681-11-0]  NIST Chemistry WebBook for detail
Original Measurements:
   Walden, P., Z. Phys. Chem. 55, 683 (1906).

 Variables:
   Temperature = 273 K and 298 K

 Prepared By:
   Valerii P. Sazonov

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of potassium iodide (2) in acetonitrile (2)
t/°CT/K102 * Mass Fraction w2Mole Fraction x2 (compiler)
0.0273.22.2590.0057
25.0298.22.0030.0050
 Method/Apparatus/Procedure:
   The analytical method was used. Method A: 10 to 20 mL of (1) and an appropriate amount of fine dry (2) were placed in a glass retort in a thermostat and stirred for many hours. Aliquots of the saturated solution were taken by pipette for titration. Method B: 15 to 25 mL of (1) and finely divided (2) were equilibrated at 40 °C with intensive stirring for an hour. The flask was then placed in a thermostat (25 or 0 °C) and stirred for 2 hours. After this, stirring was halted and the flask kept at the given temperature for 17 to 18 hours. The saturated solutions were then sampled and titrated.

 Source and Purity of Materials:
   (1) Not specified.
   (2) Not specified.

 Estimated Errors:
   Solubility: Not specified.
   Temperature: Not specified.