Compilation - Hexane with Water (IUPAC SDS Volume 37)
SDS Volume (426)
Volume 37. Hydrocarbons in Water and Seawater, Part I, p 355
Original Measurements
Krzyzanowska, T.; Szeliga, J.; Nafta (Katowice) 1978, 12, 413-7.
Variables:
Room Temp: 25 °C
Prepared by:
Method/Apparatus/Procedure:
Saturated solutions of (1) in (2) were prepared in two ways. First, 200 microliters of (1) was injected into 20 mL of (2) and thermostatted at 25 °C. Second, the mixture of (1) and (2) as above was thermostatted at 70 °C and then cooled to 25 °C. The time required to obtain equilibrium was three weeks. The solubility of (1) in (2) was measured by glc. A Perkin-Elmer model F-11 gas chromatograph equipped with a 100-150 mesh Porasil column (70 °C) and a flame ionization detector was used. Saturated solutions of heptane in 92) were used as standard solutions.
Source and Purity of Materials:
- Not specified.
- not specified.
Estimated Errors:
Mass concentration (m/v) (1): 0.3 mg(1)/kg(2) (standard deviation for 7-9 determinations)
Components:
- Hexane, $\ce{ C6H14 }$; [110-54-3] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
The solubility of hexane in water at 25°C was reported tobe 9.47 mg(1)/kg(2).
The corresponding mass percent and mole fraction, x1, calculated by compiler are 9.47 × 10-4 g(1)/100 g sln and 1.98 × 10-6.
Editor's Note: Based on the results for this and other hydrocarbon-water systems, uncertainty exists about whether the datum compiled here is independent of that of Price for the same system.
