N-Phenyl-N'-acetylthiourea-a specific reagent for photometric determination of ruthenium.
N-Phenyl-N'-acetylthiourea is recommended as a specific chelating agent for the spectrophotometric determination of ruthenium. The blue complex formed in 5-8M hydrochloroic acid is not extractable into common organic solvents but is soluble in 30% ethanol solution. The colour is stable for up to 48 hr and Beer's law is obeyed at 650 nm over the metal concentration range 2-18 mug/ml. The molar absorptivity is 4.7 x 10(3) l.mole(-1). cm(-1).
Shome
S C
SC
Department of Chemistry, Presidency College, Calcutta 700073, India.
Haldar
P K
PK