Substituted pyrimidinethiols as spectrophotometric reagents for osmium

PROMILA JAIN, MOHAN KATYAL, R P SINGH

Abstract


1- Pnenacyl- and 1- cyclohexyl-4,4,6-trimethyl-III, 4H-2-pyrimidinethiols react with Os(VIII) to form coloured complexes suitable for spectrophotometric determination of the metal. The complexes are stable, obey Beer's law and contain metal and the in 1:3 ratio. The reactions are quite selective and manyforeign ions including some of the iron and platinum group metals do not interfere.

Keywords


1- Pnenyl - 4,4; 6- trimethyl 1H; 4H-2- Phnmidmethiol; 1-cyclohexyl -4,4; 6-trimethyl - 1H; osmium; spectrophotometric determination.

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