CORROSION PREVENTION METHOD OF IRON, AND TIMBER PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a pharmaceutical composition and a corrosion prevention method of iron components that prevent corrosion of the iron components or the like that happen to contact the pharmaceutical composition in a timber processing unit for impregnate timber with the pharmaceutical composition.SOLUTION: IN one or a plurality of embodiments, a corrosion prevention method of iron in a timber processing unit includes a step for impregnating timber with a pharmaceutical composition, the timber processing unit having iron components or parts that contact the pharmaceutical composition, which is an aqueous solution composition containing a propynyl compound of iodo carbamate and an organic salt of quaternary ammonium.