Compilation - Heptane with Water (IUPAC SDS Volume 37)
SDS Volume (567)
Volume 37. Hydrocarbons in Water and Seawater, Part I, p 507
Original Measurements
Polak, J.; Lu, B. C. Y.; Can. J. Chem. 1973, 51, 4018-23.
Variables:
Temperature: 0 - 25 °C
Prepared by:
Method/Apparatus/Procedure:
The solubility of (1) in 2) was determined by gas chromatography. The solubility of (2) in (1) was determined by Karl Fischer titration. 50 mL of (1) together with 50 mL of (2) were placed in a 15 mL Hypovial closed with a Teflon coated rubber septum and placed in a constant-temperature water bath. The system was stirred magnetically for 24 hr or was kept in the bath without stirring for at least seven days before samples were taken for analysis. Details of the analysis are given in the paper.
Source and Purity of Materials:
- Phillips Petroleum Co.; pure grade reagent (99%+); shaken three times with distilled water.
- Distilled.
Experimental Data
Heptane with Water
Components:
(1) Heptane,
$\ce{ C7H16 }$;
[142-82-5]
NIST WebBook
(2) Water,
$\ce{ H2O }$;
[7732-18-5]
NIST WebBook
Experimental Values:
Solubility of heptane in water
| T (°C) | MR1 (mg/kg) | x1 |
|---|---|---|
| 0.0 | 4.39 | 7.9 x 10-7 |
| 25.0 | 3.37 | 6.1 x 10-6 |
(a-e) See "ESTIMATED ERROR"
Solubility of water in heptane
| T (°C) | MR2 (mg/kg) | x2 |
|---|---|---|
| 0.0 | 26.0 | 1.45 x 10-4 |
| 25.0 | 82.0 | 4.56 x 10-4 |
