碘酸鈷

碘酸鈷是一種無機化合物，化學式為Co(IO₃)₂。碘酸鈷在420°C分解，生成四氧化三鈷。^[1]

製備[編輯]

碘酸鈷可由碘酸或碘酸鋰在硝酸酸性條件下和硝酸鈷反應得到。如果未使用硝酸，會得到紫色的Co(IO₃)₂和粉色塊狀的Co(IO₃)₂·2H₂O的混合物。^[2]

Co(NO₃)₂ + 2 LiIO₃ → Co(IO₃)₂ + 2 LiNO₃

^ Nassau, K.; Shiever, J. W.; Prescott, B. E. Transition metal iodates. I. Preparation and characterization of the 3d iodates. Journal of Solid State Chemistry. 1973, 7 (2): 186-204. DOI:10.1016/0022-4596(73)90154-0
^ Phanon, Delphine; Bentria, Bachir; Jeanneau, Erwann; Benbertal, Djamal; Mosset, Alain; Gautier-Luneau, Isabelle. Crystal structure of M(IO₃)₂ metal iodates, twinned by pseudo-merohedry, with M^II: Mg^II, Mn^II, Co^II, Ni^II and Zn^II. Zeitschrift fuer Kristallographie, 2006. 221 (9): 635-642. DOI:10.1524/zkri.2006.221.9.635