REVERSIBLE HYDRATED MAGNESIUM CHLORIDE PHASE CHANGREVERSIBLE HYDRATED MAGNESIUM CHLORIDE PHASE CHANGE COMPOSITIONS FOR STORING ENERGY E COMPOSITIONS FOR STORING ENERGY

摘要

The present invention relates to reversible liquid/solid phase change compositions comprising MgCl2.6H2O and one or more phase equilibrium modifying additives wherein the additive is added in an amount effective to modify the semi-congruent melting behavior of the hydrated salt by reducing the formation of crystalline salt phases other than the starting hydrate during melting of the material. Optionally, the compositions of the invention also contain nucleating additives to modify and suppress the supercooling properties of the liquid phase of the phase change compositions.