Vapor‐Liquid equilibria for five cryogenic mixtures

Phase equilibrium data have been obtained for the binary systems nitrogen‐argon and nitrogen‐carbon monoxide at 83.82°K. and for the systems nitrogen‐methane, argon‐methane, and carbon monoxide‐methane at 9.67°K. Total pressures and compositions of both phases were measured. Parameters have been calculated for the Redlich‐Kister and Wilson equations for the excess Gibbs energies of the mixtures. The data are thermodynamically consistent within experimental error.