Components:
(1) Ethanol,
C2H6O; [64-17-5]
NIST WebBook
(2) Benzene,
C6H6; [71-43-2]
NIST WebBook
(3) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Sata, N.; Kimura, O.; Bull. Chem. Soc. Jpn. 10, 409-20 (1935).
Variables:
Ambient temperature: 303 K
Prepared by:
Method/Apparatus/Procedure:
Samples of known composition (by volume) were prepared in glass tubes (diameter-15mm, length-200 mm) and sealed. These were placed in a thermostat and turbidity was observed after some (not reported) time. Eight series of measurements were made. The volume of alcohol was 2.00, 5.00, or 10.00 cm3. The volume of second component was constant in the series, while the volume of the third component differed 0.05-0.02 cm3 from point to point. The results were reported in the paper as the volumes of each component added into the tube.
Source and Purity of Materials:
- Source not specified, 95% commercial reagent; purified with KMnO4, refulxed 1 day with CaO, distilled; purity 99.53% d(25°C)=0.7865.
- Merck, pure crystallized; distillation over Na.
- Doubly distilled.
Estimated Errors:
Ambient temperature: sol. ±0.01 cm3 (authors), ±(0.0001-0.005) mass fraction (compiler).
Mass concentration (m/v) (1): Not reported.
Experimental Values:
Compositions along the saturation curve
| T (°C) | T (K) | w1 | w2 | x1 | x2 |
|---|---|---|---|---|---|
| 30.0 | 303.2 | 1.50 x 10-1 | 8.33 x 10-1 | 2.19 x 10-1 | 7.18 x 10-1 |
| 30.0 | 303.2 | 2.91 x 10-1 | 6.47 x 10-1 | 3.50 x 10-1 | 4.59 x 10-1 |
| 30.0 | 303.2 | 4.13 x 10-1 | 4.60 x 10-1 | 4.09 x 10-1 | 2.69 x 10-1 |
| 30.0 | 303.2 | 4.98 x 10-1 | 2.77 x 10-1 | 4.03 x 10-1 | 1.32 x 10-1 |
| 30.0 | 303.2 | 5.11 x 10-1 | 1.14 x 10-1 | 3.33 x 10-1 | 4.4 x 10-2 |
| 30.0 | 303.2 | 4.26 x 10-1 | 3.1 x 10-2 | 2.32 x 10-1 | 1.0 x 10-2 |
| 30.0 | 303.2 | 2.80 x 10-1 | 6 x 10-3 | 1.33 x 10-1 | 2 x 10-3 |
