A sulfatomolybdate or molybdosulfate is a chemical compound containing sulfate groups links to molybdate groups via common oxygen atoms. Sulfatomolybdates can contain molybdenum in four-, five- or six-fold coordination (MoO4, MoO5 or MoO6). The sulfato component is always tetrahedral (SO4). These substances increase the diversity of material structures, and so are under investigation for interesting material properties. These include laser, luminescence, phosphors and scintillators. They are in the category of heteropolymolybdates. The most similar compounds are the sulfatotungstates. Compounds with selenium instead of sulfur exists. Other high-charge transition metals can form sulfatoniobates, sulfateovanadates and sulfatotantalates.
Formation Sulfatomolybdates have been made by dissolving molybdenum trioxide in molten potassium pyrosulfate, and other alkali pyrosulfates can be used to make other compounds.
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