VISCOSITY OF SEVERAL LIQUID HYDROCARBONS IN THE TEMPERATURE-RANGE 298-453-K AT PRESSURES UP TO 200 MPA

The viscosity of liquid 2,3,4-trimethylpentane, 2,2,4-trimethylpentane , 2,2,4,4,6,8,8-heptamethylnonane, squalane, polyisobutylene (M = 500 g/mol), ethylbenzene, and 1,2-diphenylethane at elevated pressures was determined with a rolling ball viscometer. The viscosity measurements were performed at 298, 353, and 453 K and pressures up to 200 MPa wit h an accuracy of +/-2%. The results were described by an empirical equ ation as a function of pressure and temperature.