DETERIORATION DETERMINATION METHOD AND DETERIORATION DETERMINATION DEVICE OF AQUEOUS SOLUTION OF GUEST COMPOUND FORMING HYDRATE

摘要

PROBLEM TO BE SOLVED: To determine the deterioration of an aqueous solution of a guest compound forming a hydrate. SOLUTION: In this deterioration determination method of the aqueous solution of the guest compound forming the hydrate, the chromaticity of the aqueous solution of the guest compound forming the hydrate is measured by a chromaticity measuring means 1, and, when the chromaticity exceeds a fixed value, the solution is determined to be deteriorated by a deterioration determination means 2.