HEAT TRANSFER FLUIDS AND HEAT STORAGE FLUIDS FOR EXTREMELY HIGH TEMPERATURE BASED ON POLYSULFIDES

摘要

A composition for the transport and storage of heat energy, which comprises alkali metal polysulfides of the formula (Me1(1-x),Me2x)2Sz, where Me1 and Me2 are selected from the group of alkali metals consisting of lithium, sodium, potassium, rubidium and cesium, Me1 is different from Me2 and x is from 0 to 1 and z is from 2.3 to 3.5.