Scandium basic thiosulphate, Sc(OH)S₂O₃

Scandium basic thiosulphate, Sc(OH)S₂O₃, is obtained as a white, flaky precipitate when sodium thiosulphate is added to hot aqueous scandium chloride. Thorium and zirconium are similarly precipitated, but not the rare earth elements (Meyer and Drapier).