Spectrophotometric Determination of Ruthenium

Autor:	R.P. Larsen, L.E. Ross
Rok vydání:	1959
Předmět:	chemistry.chemical_compound chemistry Sodium hydroxide Inorganic chemistry Sodium bismuthate Hydroxide chemistry.chemical_element Hypochlorite Sulfuric acid Chemical reaction Analytical Chemistry Ruthenium Ruthenium tetroxide
Zdroj:	Analytical Chemistry. 31:176-178
ISSN:	1520-6882 0003-2700
DOI:	10.1021/ac60146a004
Popis:	Conditions for the spectrophotometric determination of ruthenium as perruthenate have been established. Stable solutions of perruthenate are obtained only when the tetroxide is distilled into dilute sodium hydroxide (1M) containing hypochlorite. At higher hydroxide concentrations (6M) perruthenate is reduced rapidly by water to ruthenate even in the presence of hypochlorite. From 200 to 400 gamma of ruthenium can be determined to an accuracy of +2% at the 95% confldence level. An improved procedure for the distillation of ruthenium tetroxide which is particularly rapid and clean uses a slurry of sodium bismuthate in dilute sulfuric acid as the oxidant. (auth)
Databáze:	OpenAIRE
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