IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Nitromethane with 1,2-Ethanediol and Water

   (1) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (2) 1,2-Ethanediol; C2H6O2 ; [107-21-1]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Kubicek, V.; Novak, J. P. and Matous, J.; Collect. Czech. Chem. Commun. 58, 983-95 (1993).

   Temperature = 293 K

Prepared By:
   V. P. Sazonov

Experimental Data:   (Notes on the Nomenclature)
Table 1. Mutual solubility of nitromethane, 1,2-ethanediol and water
t/°CT/KMass Fraction w1 (compiler) Mass Fraction w2 (compiler)Mole Fraction x1Mole Fraction x2
Table 2. Compositions of equilibrium liquid phases ternary system
t/°CT/KMass Fraction w1 (compiler) Mass Fraction w2 (compiler)Mole Fraction x1Mole Fraction x2Comment(s)
202930.9650.0260.9460.025nitromethane-rich phase
20.02930.9720.0140.9410.013nitromethane-rich phase
20.02930.9760.0060.9360.006nitromethane-rich phase
20.02930.9770.0020.9320.002nitromethane-rich phase
20.02930.1550.6920.1150.503glycol (water)-rich phase
20.02930.1030.5540.0570.301glycol (water)-rich phase
20.02930.0930.3740.0410.162glycol (water)-rich phase
20.02930.0950.1900.0350.069glycol (water)-rich phase
   Two methods were used. The solubility curve was determined by the titration method. The compositions of equilibrium liquid phases were determined by the analytical method with the apparatus described in Kubicek et al.1

   Composition: ± 0.001 mole fraction.
Source and Purity of Materials:
   (1) Xenon (Poland); dried with sodium and distilled on a packed column with 40 theoretical plates; n(20 °C, D) = 1.3820, ρ(20 °C) = 1138.2 g · L-1.
   (2) Lachema (Czech); not purified; stored over Dusimo S molecular sieve and its water content monitored by the Karl Fischer method during the measurement; n(20 °C, D) = 1.4297, p(20 °C) = 1109.5 g · L–1.
   (3) Twice distilled.

Estimated Errors:

   1V. Kubicek, J. Matous, and J. P. Novak, Collect. Czech. Chem. Commun. 57, 2021 (1992).