Components:
(1) Heptane,
C7H16; [142-82-5]
NIST WebBook
(2) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
McCants, J. F.; Jones, J. H.; Hopson, W. H.; Ind. Eng. Chem. 1953, 45, 454-6.
Variables:
Ambient temperature: One temperature: 100 °F (311 K)
Prepared by:
Method/Apparatus/Procedure:
The method was essentially that of ref. 1 and involved titration of the second component to the cloud point, in a constant temperature bath.
Source and Purity of Materials:
- Phillips; pure grade; used without further purification; nD20 1.3974.
- Distilled.
Estimated Errors:
Ambient temperature: Not specified.
References
1 Washburn, E. R.; Hnizda, V.; Vold, R.; J. Am. Chem. Soc. 53, 3237 (1931).
Experimental Values:
Note: The solubility of n-heptane in water at 100°F (311 K) was reported to be < 0.1 g(1)/100 g sl. The corresponding mole fraction, x1, calculated by the compiler, is < 2 × 10-4.The solubility of water in n-heptane at 100°F (311 K) was reported to be 0.12 g(2)/100 g sln. The corresponding mole fraction, x2, calculated by the compiler, is 6.6 × 10-3.
