NH4H2MoO4

Ammonium dihydrogen molybdate, with the chemical formula NH4H2MoO4, is an inorganic compound. It is the ammonium salt of molybdic acid. This compound typically appears as a white crystalline solid. It is soluble in water. The compound can be formed by reacting molybdenum trioxide with ammonia and water. Its synthesis involves the dissolution of molybdenum trioxide in aqueous ammonia, followed by controlled evaporation to crystallize the product. NH4H2MoO4 is often used as a source of molybdenum in chemical reactions and as a precursor in the synthesis of other molybdenum compounds. It finds applications in various fields, including catalysis and materials science. It can also be used in analytical chemistry. When heated, ammonium dihydrogen molybdate decomposes.