NITROSYLRUTHENIUM NITRATO COMPLEXES IN AQUEOUS NITRIC ACID

Journal Article · Tue Dec 01 04:00:00 EST 1959 · J. Inorg. & Nuclear Chem.

DOI:https://doi.org/10.1016/0022-1902(59)80106-8· OSTI ID:4175092

Fletcher, J M; Brown, P G.M.; Gardner, E R; Hardy, C J; Wain, A G; Woodhead, J L

Paper chromatographic and ion exchange studies of nitrosylruthenium nitrato complexes in 0.1 to 14.5 M nitric acid have enabled the complexes to be separated into four groups in order of increasing complexing from the mononitrato to the pentanitrato complex, H/sub 2/RuNO(NO/sub 3/)/sub 5/. The eleven nitrato complexes which can be formulated assuming a regular octahedral arrangement around the hexacoordinated ruthenium were allocated to these groups. Absorption spectra and compositions are presented for equilibrium mixtures of the complexes in nitric acid and the successive formation constants for nitrato complexing of nitrosylruthenium were calculated. Other measurements include the rates of one of the denitration reactions at 0 deg and 25 deg and the ruthenium distribution coefficients after prolonged contact of solutions in 0.5 to 10 M nitric acid with an anion exchange resin. In contrast to other metal nitrates, tributyl phosphate extracts preferentially the tetra- and pentanitrato acids rather than the uncharged trinitrato complex. (auth)

• Research Organization: Atomic Energy Research Establishment, Harwell, Berks, Eng.
• NSA Number: NSA-14-009420
• OSTI ID: 4175092
• Journal Information: J. Inorg. & Nuclear Chem., Journal Name: J. Inorg. & Nuclear Chem. Vol. Vol: 12
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
BUTYL PHOSPHATES
CHEMISTRY
CHROMATOGRAPHY
DISTRIBUTION
ION EXCHANGE
MEASURED VALUES
NITRATES
NITRIC ACID
NITROGEN OXIDES
NITROSYL RADICALS
ORGANIC NITROGEN COMPOUNDS
PAPER
RESINS
RUTHENIUM COMPLEXES
RUTHENIUM NITRATES
SOLUTIONS
SOLVENT EXTRACTION
SPECTRA
WATER