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CAS Number 1313-27-5
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Linear Formula MoO3
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Molecular Weight 143.94
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EC Number 215-204-7
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MDL number MFCD00003469
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PubChem Substance ID 24852067
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eCl@ss 38180807
Molybdenum trioxide is chemical
compound with the formula MoO3. This compound is produced on the largest
scale of any molybdenum compound. It occurs as the rare mineral molybdite. Its chief application is as an
oxidation catalyst and as a raw material for the production of molybdenum metal.
The oxidation state of molybdenum in this compound is +6.
Detailed description
Uses
Molybdenum trioxide is used to manufacture
molybdenum metal, which serves as an additive to steel and corrosion-resistant
alloys. The relevant conversion entails treatment of MoO3 with hydrogen at elevated
temperatures:
MoO3 + 3 H2 → Mo + 3 H2O
It is also a component of the co-catalyst used in the
industrial production of acrylonitrile by the oxidation of propene and ammonia.
Because of its layered structure and the ease of the
Mo(VI)/Mo(V) coupling, MoO3 is
of interest in electrochemical devices and displays.[5] Molybdenum trioxide
has also been suggested as a potential anti-microbial agent, e.g., in polymers.
In contact with water, it forms H+ ions
that can kill bacteria effectively.[6] However, the issue
of keeping the catalyst clean in an environment that would exploit such
antimicrobial properties has not been explored.
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