SDS Volume

Volume 71. Nitromethane with Water or Organic Solvents, p None

Source Publication

Friedman, H. L.; J. Am. Chem. Soc. 74, 3294-7 (1954).

Conditions:

Room Temp: 273 - 298 $\pu{K}$

Compiler:

V.P. Sazonov

Methodology:

The method was essentially that employed Eucken and Herzberg [1]. The solvent was degassed by alternately opening to the vacuum pump for 5-15 s and then stirring very rapidly to produce cavitation. This was repeated 5-10 times. In the solubility measurement itself gas, which had been previously saturated with solvent vapor, was admitted to the saturation vessel, holding about 80 mL of solution, and with 5-10 mL remaining space, volume-time measurements were taken and extrapolated back to the time the gas was admitted. Then the stirrer was turned on and driven very fast, producing a slightly (~1%) supersaturated solution. The approach to equilibrium was then followed from each direction while stirring as rapidly as possible without producing cavitation and bubbles.

Sample Information:

1. Source not specified; purity not specified; redistilled and dried by filtering at -20°C.
2. Matheson; purified from a more volatile impurity by fractional condensation at -190°C.

Measurement Errors:

Mass concentration (m/v) (1): relative error of 2 to 3 determinations less than 3%.

Methodology Citation

¹ Eucken, A.; Herzberg, C.; Z. Phys. Chem. 195, 1 (1950).