Spectrophotometric Determination of Ruthenium(III) Using 1-Nitroso-2-Naphthol-3,6-Disulfonic Acid (Disodium Salt)

Abstract

Nitroso -2 -naphthol*-3,6 -disulfonic acid forms a 2:1 colored complex with ruthenium(lll) in aqueous solution. An investigation of its color reaction as a basis for the spectrophotometric determination of ruthenium has been carried out. The violet-blue complex exhibits a maximum absorbance

Light Absorption Spectrometry

“…Phenoselenazine (336) and 2mercaptobenzoxazole (23) have also been recommended for palladium. A 1:2 complex is produced by the reaction between ruthenium(III) and 1-nitroso-2 -naphthol -3,6 -disulfonic acid (345). Platinum(IV) in the presence of tin(II) chloride gives a blue color with 2,3 -quinoxalinedithiol in N,Ndi-methyIformamide.…”