diytterbium trisulphate Ytterbium Sulfate, anhydrous Sulfuric acid,ytterbium(3+) salt (3:2) YTTERBIUM(III) SULFATE 99.99+% Ytterbium(III) sulphate, anhydrous 99.99% ytterbium(3+),trisulfate Ytterbium sulfate octahydrat(III)