Zirconyl nitrate hydrate, ROTI®METIC 99,99 % (4N), Molar mass (M) 231,23 + x H2O g/mol, Density (D) 1,536 g/cm³, CAS No. [14985-18-3], UN-Nr. 3085, EG-Nr. 237-529-3, Empirical formula ZrO(NO3)2 · x H2O