Accession Number:

AD0713540

Title:

PHASE BEHAVIOR IN FLUID MIXTURES AT HIGH PRESSURES. I. EXPERIMENTAL,

Descriptive Note:

Corporate Author:

MILITARY ACADEMY WEST POINT N Y

Personal Author(s):

Report Date:

1970-01-01

Pagination or Media Count:

14.0

Abstract:

The work reported here represents part of a long-term research objective of determining accurate experimental liquid-vapor phase equilibrium data on binary fluid mixtures in the temperature range 13-160 Kelvin and at pressures up to 4000 atm. Systems under investigation are those in which, under these conditions, one component is normally a gas and the other is a liquid. These substances are among those with the lowest critical temperatures and the simplest molecular structures. The gas-liquid critical curve extending into pressure-temperature-composition PTX space, from the critical point of argon, has been well-defined by eleven experimental points. It was found to pass through a minimum in temperature at 147.1K, and a pressure of 440 atm. These results confirm the presence of fluid-fluid equilibrium in this system at temperatures above the critical temperature of argon 150.86K. Additionally, the three phase boundary solid-liquid-gas solid-fluid-fluid has been determined at pressures to 4000 atm. Author

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE