It precipitates from potash, oxides of rubidium, cesium and thallium, ammonia and other nitrogenous organic alkaloids. Used in preparing Mo-Al2O3 catalysts to produce ultra-low sulfur diesel. A precursor to hybrid organic-inorganic based molecular batteries with applications as cation-insertion electrodes. One of the components of the Goldner's trichrome stain used for tissue staining, used in Folin phenol method for the quantitative determination of proteins. Also, may be used as reactant for preparation of catalysts for the nitration of aromatic compounds. Highly dispersed MoOx/CNTs (carbon nanotubes) as a support for Pt catalysts. Reduced molybdophosphate mixed-valence Keggin clusters. Polyoxometalate (POM) hybrid materials based on Keggin polyanion building blocks. Luminescent Langmuir-Blodgett films. Anchored Wilkinson catalyst. Employed in preparation of a hybrid organic-inorganic, electroactive material with potential application as a cation-insertion electrode in batteries. A precursor to hybrid organic-inorganic based molecular batteries with applications as cation-insertion electrodes.