Molybdic acid

Molybdic acid refers to hydrated forms of molybdenum trioxide and related species.

The monohydrate MoO3·H2O consists of layers of octahedrally coordinated MoO5·(H2O) units where 4 vertices are shared.

[4] In acidified aqueous solutions of molybdic acid, the complex MoO3(H2O)3 is observed.

They arise by adding base to solutions of molybdic acid.

Molybdic acid and its salts are used to make the Froehde reagent for the presumptive identification of alkaloids.

Portion of one layer of hydrated molybdic acid, MoO 3 ·(H 2 O) 2 .