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CORRELATION OF ABSORPTION SPECTRA AND PARTITION DATA FOR PLUTONYL NITRATE IN AQUEOUS AND ORGANIC MEDIA

Journal Article · · J. Inorg. & Nuclear Chem.
An examination of the absorption spectra of plutonyl nitrate in dibutyl carbitol shows the presence of two species, the dinitrate and the trinitrate, the lntter belng formed in the presence either of nitric acid or qunternary ammonium salts. The addition of tributyl phosphate to dibutyl carbitol solutions tends to suppress the trinitrate species. The trinitrnte has a much higher partition coefficient than the dinitrate for extraction into dibutyl carbitol from aqueous nitric acid and nitrntes. This improvement in the organic extraction obtalned by raising the aqueous acidity is shown, by correlntion with absorption spectra, to be directly related to the production of the trinitratoplutonyl species from the dinitrate. The association constant for the reaction PuO(NO/sub 3/)/sub 2/ + HNC/ sub 3/ = HPuO/sub 2/(NO/sub 3/)/sub 3/ in the organic soIvent has been obtained with a value of 4 plus or minus 1. The relation of the plutonyl species present in the aqueous and organic phases is discussed. (auth)
Research Organization:
Atomic Energy Research Establishment, Harwell, Berks, Eng.
NSA Number:
NSA-13-002805
OSTI ID:
4291678
Journal Information:
J. Inorg. & Nuclear Chem., Journal Name: J. Inorg. & Nuclear Chem. Vol. Vol: 7
Country of Publication:
Country unknown/Code not available
Language:
English