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Decomposition of the hexachloroosmate(IV) ion on the surface of yttrium oxide hydrate

Journal Article · · J. Appl. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:7060460

The purpose of the present work was to study the kinetics of osmium deposition during decomposition of OsCl/sub 6//sup 2 -/ at the interface between aqueous K/sub 2/OsCl/sub 6/ solution and the surface of Y/sub 2/O/sub 3/.nH/sub 2/O under the various conditions specified below. The behavior of this complex in solutions is somewhat peculiar; for example, aquation of OsCl/sub 6//sup 2 -/ is very slow, ligand exchange is slight, and yet the complex decomposes fairly easily in solution under the influence of light, with precipitation of the hydroxide OsO/sub 2/.nH/sub 2/O. Although photochemical conversions are characteristic of all complexes of the noble metals, they are especially rapid in the case of osmium. The existence of osmium in several oxidation-reduction states, of almost equal stability (III-V), hinders studies of aquation and other conversions of OsCl/sub 6//sup 2 -/. Therefore study of the above process, which is considerably faster than photochemical conversions, as will be shown below, is of special interest.

OSTI ID:
7060460
Journal Information:
J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 54:8; ISSN JAPUA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ADSORBENTS
ALKALI METALS
AQUEOUS SOLUTIONS
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CONCENTRATION RATIO
DATA
DECOMPOSITION
DEPOSITION
DISPERSIONS
ELEMENTS
ENERGY
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HYDRATES
INFORMATION
INTERFACES
IONS
KINETICS
MATHEMATICS
METALS
MIXTURES
NUMERICAL ANALYSIS
NUMERICAL DATA
OSMIUM CHLORIDES
OSMIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
POTASSIUM
REACTION KINETICS
SOLUTIONS
SPECTRA
SURFACE PROPERTIES
SURFACES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES