Application of p-Dimethylaminoanil of 2-Thiopheneglyoxal in Gravimetric Estimation of Ruthenium(III), Rhodium(III), lridium(III) and Platinum(IV)

Chemistry Department, N. R. E. C. College, Khurja-203 131 Manuscript received 10 July 1986, revised 18 March 1987, accepted 22 April 1987 p-Dimethylaminoanil of 2-thiopheneglyoxal, which precipitates several platinum metal ions in alkaline medium at different pH, has been used as gravimetric reagent in the estimation of RuIII, RhIII, IrIII and PtIV cations individually