Molybdic acid refers to solid, hydrated forms of molybdenum trioxide and species in aqueous solution.

The simplest solid form, the monohydrate, is MoO₃.H₂O, the dihydrate MoO₃.2H₂O is also known. The solid state structure of MoO₃.H₂O consists of layers of octahedrally coordinated MoO₅(H₂O) units where 4 vertices are shared.^[1] the dihydrate has the same layer structure with the extra H₂O molecule intercalated between the layers.
In aqueous solutions of acidified molybdate salt at low concentration molecular O₃Mo.3H₂O has been characterised spectroscopically.^[2]

The salts of molybdic acid are called molybdates.

[edit] References

This inorganic compound-related article is a stub. You can help Wikipedia by expanding it. v • d • e