Components:

(1) Naphthalene, C₁₀H₈; [91-20-3] NIST WebBook
(2) Water, H₂O; [7732-18-5] NIST WebBook

Original Measurements

Andrews, L. J.; Keefer, R. M.; J. Am. Chem. Soc. 1949, 71, 3644-77.

Variables:

Ambient temperature: 25 °C

Prepared by:

Z. Maczynska, A. Maczynski

Method/Apparatus/Procedure:

A mixture of (1) and (2) was rotated for twenty hours in a constant temperature bath at 25°C. A sample (5-20 mL) of the aqueous phase was withdrawn and extracted with a measured volume of hexane (10-50 mL) by shaking in a glass-stoppered Erlenmeyer flask. Next, the absorbance of the hexane phase was measured against a hexane blank on the Beckman spectrophotometer.

Source and Purity of Materials:

1. Eastman Kodak Co., best grade; recrystallized from ethanol; m.p. 80.5°C
2. Not specified.

Estimated Errors:

Ambient temperature: Not specified.