|Jmol-3D images||Image 1|
|Molar mass||161.95 g mol-1 |
|Density||3.1 g cm-3 |
|Melting point||300 °C |
|Solubility in water||1510 mg dm-3 |
|S-phrases||S24/25, S22 |
|Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)|
Molybdic acid refers to solid, hydrated forms of molybdenum trioxide and species in aqueous solution.
The simplest solid form, the monohydrate, is MoO3·H2O, though 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. The dihydrate has the same layer structure with the extra H2O molecule intercalated between the layers.
In aqueous solutions of acidified molybdate salts low concentration molecular O3Mo·3H2O has been characterised spectroscopically.
The salts of molybdic acid are called molybdates.
- "Molybdic acid | 7782-91-4". Chemicalbook.com. Retrieved 2012-08-23.
- Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford Science Publications ISBN 0-19-855370-6
- Solution structure of molybdic acid from Raman spectroscopy and DFT analysis, Oyerindea O.F., Week C.L., Anbarb A.D., Spiro T.G. Inorganica Chimica Acta, 361, 4, (2008), 1000-1007, doi:10.1016/j.ica.2007.06.025
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