Ceric acid decontamination of nuclear reactors

Details Ceric acid decontamination of nuclear reactors Ceric acid decontamination of nuclear reactors

G - Physics

21

F

149/12

G21F 9/00 (2006.01)

Patent

CA 1230806

13 ABSTRACT OF THE DISCLOSURE Disclosed is a method of decontaminating the metal surfaces in the cooling system of a nuclear reactor by contacting the metal surfaces with an aqueous solution containing about 0.5 to about 3% of a ceric acid which can be tetrasulfato ceric acid, hexasulfamato ceric acid, hexaperchlorato ceric acid, or mixtures thereof, and about 1 to about 5% of an inorganic acid that forms a complex with the ceric acid. Also disclosed is a decontaminating solution of water containing about 0.5 to about 3% of a ceric acid which can be tetrasulfato ceric acid, hexasul- famato ceric acid, hexaperchlorato ceric acid, or mixtures thereof, and about 1 to about 5% of an inorganic acid that forms a complex with the ceric acid.

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