Measurement of the Density of Base Fluids at Pressures to 2.20 GPa

Abstract

The influence of pressure on the density of six base fluids was experimentally studied for a range of pressures from 0.422 to 2.20 GPa. An important parameter used to describe the results is the change in relative volume with change in pressure dvr/dp. For pressures less than the solidification pressure (p ps), there was no change in dr/dp with changing pressure. The solidification pressures of the base fluids varied considerably, as did the slopes that the experimental data assumed, for p < pv. A formula was developed that describes the effect of pressure on density in terms of four constants. These constants vary for the different base fluids tested. Presented at the 41st Annual Meeting in Toronto, Ontario, Canada May 12–15, 1986