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Spectrophotometric Determination of Palladium with Methylthymol Blue
Author(s) -
Srivastava K. C.
Publication year - 1974
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.197400022
Subject(s) - chemistry , palladium , perchloric acid , reagent , metal ions in aqueous solution , metal , absorption (acoustics) , ion , stability constants of complexes , analytical chemistry (journal) , inorganic chemistry , chromatography , organic chemistry , optics , catalysis , physics
Abstract A new, sensitive spectrophotometric method for the determination of palladium(II) with methylthymol blue has been developed. The palladium methylthymol blue complex has an absorption maximum at 530 nm . The colour reaction has a sensitivity of 0.005 µg of palladium/ cm 2 and obeys Beer's Law over the range 0.4 to 3.24 ppm of palladium. The effects of concentration of perchloric acid, reagent, heating, stability of colour and diverse ions have been investigated. The ratio of metal: ligand in the complex is 1:1 and the formation constant was calculated to be 1.18×10 4 .