Measurement of solubilities of 1-pentanol in supercritical ethene

✍ Scribed by Arne Staby; Jørgen Mollerup

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 705 KB
• Volume: 4
• Category: Article
• ISSN: 0896-8446
• DOI: 10.1016/0896-8446(91)90016-y

✦ Synopsis

An apparatus for measurement of solubilities of liquids in supercritical fluids has been constructed. It consists of a 70-MPa (lO,OOO-psia) PVT cell where supply systems for liquids and gases have been added. The cell is a pistoned 130-cc pressure-compensated glass tube, where stirring is accomplished by rocking the cell. A liquid and a supercritical gas are charged into the cell. Samples are withdrawn from the cell by displacing part of the liquid or gaseous phase to high-pressure pycnometers. The samples are weighed before and after they are depressurized in a 10-L gasometer to atmospheric pressure and the amount of liberated gas measured. If the liquid charged into the cell is a pure component, no further analysis is needed. Solubilities of I-pentanol in supercritical ethene have been measured at pressures to 16 MPa and at temperatures of 343.15 and 373.15 K.