Characteristic

Molybdic acid refers to hydrated forms of molybdenum trioxide and related species. The monohydrate (MoO₃·H₂O) and the dihydrate (MoO₃·H₂O) are well characterized. They are yellow diamagnetic solids.

Chemical formula:MoO₃·H₂O

Molar mass:161.95 g mol−1 

Appearance: Yellow powder

Density:3.1 g cm⁻³ 

Melting point:300 °C (572 °F; 573 K)

Solubility in water:1510 mg dm⁻³ Soluble in 10% ammonia 35gm/lt

Application

Molybdic acid is used as a precursor in the production of ammonium molybdate tetrahydrate and molybdenum(IV) sulfide. The mixture of molybdic acid in concentrated sulfuric acid is called as Froehde reagent, which finds application in analytical chemistry for the detection of alkaloids.