Fundamental Research on Iron(III) Chloride-Methanol System as a Chemical Heat Storage Material

Abstract

A fundamental research was carried out on the physicochemical properties of the iron(III)chloride-methanol system and on the feasibility of the system as the chemical heat storage material. It was found that ( 1 ) the heat of solution of iron(III) chloride into methanol is 92 kJ per mole which is large enough to construct a dilution-concentration type heat recovey system with a low temperature heat source., ( 2 ) Solubilities, boiling points and densities of iron(III) chloride-methanol solutions were measured and specific heat was estimated. Th e temperature increase per one cycle was calculated to be about 20°C for the dilution of the solution from 1/3.5 mole fraction of iron(III) chloride to 1/6 mole fraction under atomospheric pressure.