Magnesium Selenite
Title: Magnesium Selenite
CAS Registry Number: 15593-61-0
Molecular Formula: MgO3Se
Molecular Weight: 151.26
Percent Composition: Mg 16.07%, O 31.73%, Se 52.20%
Line Formula: MgSeO3
Literature References: Hexahydrate prepd by adding sodium selenite to a soln of magnesium chloride: Nilson, cited in Mellor's 10, 826 (1930); by treating a soln of magnesium chloride or sulfate with selenious acid and adding sodium carbonate to start precipitation: Boutzoureano, Recherches sur les Sélénites (Paris, 1889).
Properties: Orthorhombic crystals. Insol in water; sol in dil acids. Forms monoclinic prisms of the dihydrate when heated in a sealed tube to 150°. When heated to 100°, it loses 5 mols of water leaving the monohydrate.
 
 
Status: This monograph has been retired and is no longer subject to revision or update.

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