SDS Volume (3898)

Volume 69. Ternary Alcohol-Hydrocarbon-Water Systems, p None

Original Measurements

Moriyoshi, T.; Uosaki, Y.; Matsuura, H.; Nishimoto, W.; J. Chem. Thermodyn, 20, 551 (1988).

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

A. Skrzecz

Method/Apparatus/Procedure:

The experimental apparatus consisted of a high-pressure equilibrium cell, two hand operated pumps, a pressure exchanger, and two pressure gauges. The equilibrium cell, a stainless-steel cylinder of 50 mL capacity, with mechanical stirrer was immersed in a thermostat. The mixture, prepared by mass, were stirred under the desired conditions for at least 8 h and then allowed to settle for 2 h. Samples of each layer were withdrawn for GLC analysis (glass column, 3.2 mm i.d., 150 cm long, packed with PEG-6000 Shimalite F; T/K=343; thermal-conductivity detector equipped with electronic intergrator). Acetone was used as an inert standard. Compositions were determined from the peak-area ratio and the calibration curve. Analysis of each phase were done at least twice.

Source and Purity of Materials:

1. Source not specified; dried by refluxing with $\ce{CaO}$, followed by the Lund-Bjerrum magnesium method, distilled.
2. Source not specified; shaken with conc. $\ce{H2SO4}$, neutralized with aq. $\ce{NaOH}$, dried over CaC $\ce{I2}$, distilled.
3. De-ionized, distilled over $\ce{KMnO4}$, redistilled.

Estimated Errors:

Ambient temperature: Temp. ±0.002 K (control of the thermostat); press. ±0.1 Mpa; composition ±0.003 mass fraction.
Mass concentration (m/v) (1): Not reported.