IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Acetonitrile with Octanedioic acid
Components:
   (1) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail
   (2) Octanedioic acid; C8H14O4; [505-48-6]  NIST Chemistry WebBook for detail
Original Measurements:
   Smagowski, H., Zesz. Nauk. Wydz. Mat., Fiz. Chem., Univ. Gdanski, Chem. 3, 45 (1974).

 Variables:
   Temperature = 273 K to 308 K

 Prepared By:
   Valerii P. Sazonov

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of octanedioic acid (2) in acetonitrile (1)
t/°CT/K102 * Mass Fraction w2 (compiler)Mole Fraction x2 (compiler)n1/V2 [mol/L]
0.0273.20.260.00060.012
15.0288.20.440.00100.020
25.0298.20.820.00190.037
35.0308.21.90.00450.083
 Notes:
   a  For these calculations the compiler assumed that the densities of the solutions were those of acetonitrile1 at the specified temperatures.

 Method/Apparatus/Procedure:
   The titration method was used: 25 mL of (1) and an amount of (2) exceeding the solubility were placed in 50 mL volumetric flasks. The flasks were closed by ground glass stoppers and stored at the required temperature in a thermostat for 45 hours, with intensive stirring every several hours. After this, 5 mL samples of the saturated solution were taken by pipette, diluted to 25 mL with water and titrated against 0.07 0.1 N sodium hydroxide solutions by using phenolphthalein indicator.

 Source and Purity of Materials:
   (1) Source not specified; purity not specified; dried over anhydrous K2CO3 and repeatedly distilled over P2O5.
   (2) Source not specified; purity not specified; purified by crystallization from water.

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

 References:
   1. J. Timmermans, Physico-Chemical Constants of Pure Organic Compounds, Elsevier Publishing Co., New York, 1950.