Cadmium oxalate is an inorganic compound with the chemical formula CdC2O4. It can be produced by reacting potassium oxalate and cadmium nitrate. Its thermal decomposition in air produces cadmium oxide,Fabbri, G.; Baraldi, P. Thermal decomposition of organic acid salts. I. Decomposition of metal oxalates in air. Atti della Societa dei Naturalisti e Matematici di Modena, 1975. 106: 57-72. ISSN: 0365-7027. while metallic cadmium will be formed instead under vacuum.David, Robert. The thermal decomposition of several metallic oxalates. Bulletin de la Societe Chimique de France, 1960. 719-736. ISSN: 0037-8968. It reacts with chalcogens in ethylenediamine to form the corresponding cadmium chalcogenide: CdC2O4 + E → CdE + 2 CO2↑ (E = S, Se, Te)
References