G - Physics – 21 – F
Patent
G - Physics
21
F
359/37, 149/8, 3
G21F 9/00 (2006.01)
Patent
CA 1224025
ABSTRACT OF THE INVENTION A method for decontaminating metal surfaces having radioactive oxide deposits thereon is disclosed which compri- ses preparing a decontamination solution having a pH of about 1.5 to about 4 comprising water, about 0.02 to about 0.5% of a water soluble organic acid which has an equilibrium constant in a complex with ferric ion of at least about 109 and which is capable of producing a pH of about 2 to about 3 in water, and about 0.01 to about 0.4% of a chelate in free acid form which has an equilibrium constant in a complex with ferric ion of about 1015 to about 1019 and which is at least 0.4% soluble at 40°C in water having a pH of about 2 to about 3. An apparatus for performing the above method is disclosed.
454997
Becker Lawrence F. Jr.
Murray Alexander P.
Weisberg Sharon L.
Oldham And Company
Westinghouse Electric Corporation
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