HEAT PIPE

PURPOSE:To prevent performance from being lowered due to collection of hydrogen gas in the interior of an iron made container, by sealing an aqueous solution of a molybdate as a working fluid in the container. CONSTITUTION:A stainless steel, a carbon steel or the like is used as a material for the container of a heat pipe. An aqueous solution of an alkali metal salt of molybdic acid, an alkaline earth metal salt of molybdic acid or the like is used as a working fluid, and a dense anti-corrosion film excellent in corrosion resistance is formed on the inside surface of the container. Although slight corrosion may occur at the inside surface of the container to generate a little hydrogen gas, the quantity of the gas will no become so large as to lower the performance of the heat pipe. Accordingly, by suppressing the generation of hydrogen gas as much as possible, the problem of lowering the performance of the heat pipe due to hydrogen gas can be overcome.