Direct reaction of metals with the mixed non-aqueous system dimethyl sulphoxide–sulphur dioxide

Abstract

The metals (M = Mg, Sr, Ba, V, Mn, Fe, Co, Ni, Cu, Zn, Al, In, Pb, and Yb) are dissolved by mixed non-aqueous solvent system dimethyl sulphoxide–sulphur dioxide to form the pyrosulphates of M = Mg, V, Mn, Fe, Co, Ni, Cu, Zn, Al, In, and Yb, and the sulphates of M = Sr, Ba, and Pb, and the metals Na, Be, Ca, Ce, Pr, Eu, Dy, Ga, Tl, Sn, Sb, Bi, I, and Cd also dissolve, but the products have not yet been characterized; phase studies indic the existence of a 1 : 1 adduct of dimethyl sulphoxide a sulphur dioxide, which is considered responsible for solution of metals in the system.