Liquid—Solid Phase Equilibria in the Hydrogen—Deuterium System

The phase behavior of mixtures of parahydrogen and normal deuterium, in the liquid and solid states, has been investigated. The calorimetric data show a continuous range of solid solutions from 8°K to the melting points. In the liquid—solid two‐phase region the system can be characterized by a continuous series of liquid and solid solutions. The experimental data show no evidence of the phase separation in the solid state previously reported by Kogan, Lazarev, and Bulatova.