|
|Section2= |Section3= |Section4= |Section7= |Section8= }} Manganese(II) oxide (systematically named manganese(2+) oxide(2−)) is an inorganic compound with chemical formula MnO.〔Arno H. Reidies "Manganese Compounds" Ullmann's Encyclopedia of Chemical Technology 2007; Wiley-VCH, Weinheim. 〕 It forms green crystals. The compound is produced on a large scale as a component of fertilizers and food additives. == Structure, stoichiometry, reactivity== Like many monoxides, MnO adopts the rock salt structure, where cations and anions are both octahedrally coordinated. Also like many oxides, manganese(II) oxide is often nonstoichiometric: its composition can vary from MnO to MnO1.045. Below 118 K MnO is antiferromagnetic.〔 MnO has the distinction of being one of the first compounds〔J.E Greedon, (1994), ''Magnetic oxides'' in Encyclopedia of Inorganic chemistry Ed. R. Bruce King, John Wiley & Sons ISBN 0-471-93620-0〕 to have its magnetic structure determined by neutron diffraction, the report appearing in 1951.〔Neutron Diffraction by Paramagnetic and Antiferromagnetic Substances C. G. Shull, W. A. Strauser, and E. O. Wollan, Phys. Rev. 83, 333 - 345 (1951), 〕 This study showed that the Mn2+ ions form a face centered cubic magnetic sub-lattice where there are ferromagnetically coupled sheets that are anti-parallel with adjacent sheets. Manganese(II) oxide undergoes the chemical reactions typical of an ionic oxide. Upon treatment with acids, it converts to the corresponding manganese(II) salt and water.〔 Oxidation of manganese(II) oxide gives manganese(III) oxide. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Manganese(II) oxide」の詳細全文を読む スポンサード リンク
|