Several systems of low melting point mixtures of inorganic salts are disclosed. These compositions can have liquidus temperatures less than 80.degree. C. and thermal stability limits greater than 500.degree. C.
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT
 This invention was made with Government support under Grant No. DE-FG36-08GO18144, awarded by the Department of Energy Contract to Halotechnics, Inc. The Government has certain rights in this invention.