Ytterbium(III) oxalateYtterbium oxalate is the oxalate of ytterbium, with the chemical formula Yb23.PreparationYtterbium oxalate hydrate can be prepared by reacting an aqueous solution of ytterbium(III) chloride and a benzene solution of dimethyl oxalate.PropertiesYtterbium oxalate pentahydrate is decomposed by heat to obtain the dihydrate, which is further heated to obtain ytterbium(III) oxide. It reacts with acids to obtain H.6H2O.