DETERMINATION OF SUBMICROGRAM QUANTITIES OF RUTHENIUM BY CATALYSIS OF THE CERIUM(IV)-ARSENIC(III) REACTION

Journal Article · Mon Feb 29 23:00:00 EST 1960 · Analytica Chimica Acta (Netherlands)

DOI:https://doi.org/10.1016/S0003-2670(00)88282-3· OSTI ID:4144463

Surasiti, C; Sandell, E B

Ruthenium in amounts of 0.005 to 0.1 mu g can be determined by its catalysis of the slow reaction between cerium(lV) and arsenic(III) in sulfuric acid solution. The rate of the catalyzed reaction is obtained by measuring the concentiation of cerium(IV) spectrophotometrically as a function of time. Ruthenium is first separated by Carbon tetrachloride extraction of the tetroxide. following argentic oxide oxidation Osmium tetroxide is removed by prior extraction with Carbon tetrachloride after differential oxidaLion with nitric acid. Osmium can also be removed by boiling an acid solution with hydrogen peroxide. Ruthenium is left in solution. (auth)

• Research Organization: Univ. of Minnesota, Minneapolis
• NSA Number: NSA-14-024079
• OSTI ID: 4144463
• Journal Information: Analytica Chimica Acta (Netherlands), Journal Name: Analytica Chimica Acta (Netherlands) Vol. Vol: 22; ISSN ACACA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
ARSENIC
BOILING
CARBON TETRACHLORIDE
CATALYSIS
CERIUM
CHEMICAL REACTIONS
CHEMISTRY
HYDROGEN PEROXIDES
NITRIC ACID
OSMIUM OXIDES
OXIDATION
PHOTOMETRY
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
QUANTITY RATIO
REACTION KINETICS
RUTHENIUM
SEPARATION PROCESSES
SILVER OXIDES
SOLUTIONS
SOLVENT EXTRACTION
SPECTROSCOPY
SULFURIC ACID
TRACE AMOUNTS