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An apparatus for vapor-liquid equilibrium measurements under pressure. Whittle, Donald James

Abstract

Equipment and methods used to measure vapor-liquid equilibriums at pressures above one atmosphere are reviewed, and the methods of treating the results obtained from such equipment are also discussed. An apparatus suitable for the study of vapor-liquid equilibrium at pressures up to 3000 pounds per square inch and temperatures up to 550°F. has been designed. Provision is made in the apparatus for measuring the volume of each of the two phases and for removing samples of the individual phases at constant temperature and pressure. Recommendations for the calibration and use of the apparatus and for the purification of the solvents to be studied are given.

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