Patton, C.L. and Luks, K.D., 1993. Multiphase Equilibrium Behavior of the Mixture Ethane + 1-Decanol + N-Docosane. Fluid Phase Equilibria, 85: 181-190. the Phase Equilibrium Behavior of the Liquid-Liquid-Vapor (11g) Region of the Mixture Ethane + 1-Decanol + N-Docosane Was Examined. This Ternary System Was Studied Experimentally using Visual-Cell Stoichiometric Techniques with Pressure Discrimination of ±0.01 Bar, Accomplished by using a Cell Pressure Transducer in Conjunction with a Dead-Weight Gauge. the Three-Phase Region Was Located between the 11g Loci of the Binary Mixtures Ethane + 1-Decanol and Ethane + N-Docosane and Bounded Below by a Lower Critical End Point (1 = 1-G) Locus and above by an Upper Critical End Point (1-1 = G) Locus. Phase Compositions and Molar Volumes Are Reported for the Two Liquid Phases Along the 298.15 and 304.15 K Isotherms. Separabilities between the Liquid Phases of the Two Solutes Are Presented and Discussed for the Two Isotherms. © 1993.