Article

X-ray investigation of the equilibrium phase diagram of CH4-N2 solid mixtures

A. I. ProkhvatilovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Khar'kovL. D. YantsevichPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Khar'kov

Soviet Journal of Low Temperature Physicsjournal1983en

ABI

Abstract

The phase diagram of solid methane-nitrogen mixtures is investigated by x rays. The boundaries of the maximum reciprocal solubility of the components are determined in the temperature range from 5 °K to the melting point of the mixture. The lattice parameters and molar volumes of the observed phases are studied as a function of temperature and concentration. Negative thermal expansion is found at certain temperatures and concentrations of nitrogen in methane crystals.

Topics

Chemical Thermodynamics and Molecular Structure Thermodynamic properties of mixtures Phase Equilibria and Thermodynamics

Identifiers

DOI: 10.1063/10.0030835

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