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69850

Molybdenum(VI) oxide

puriss. p.a., 99.5%

Synonym(s):

Molybdenum trioxide

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About This Item

Linear Formula:
MoO3
CAS Number:
1313-27-5
Molecular Weight:
143.94
NACRES:
NA.21
PubChem Substance ID:
329761261
UNSPSC Code:
12352303
EC Number:
215-204-7
MDL number:
MFCD00003469
Assay:
99.5%
Form:
powder
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grade

puriss. p.a.

Quality Segment

200

assay

99.5%

form

powder

mp

795 °C (lit.)

anion traces

chloride (Cl-): ≤20 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤20 mg/kg, Cd: ≤10 mg/kg, Co: ≤20 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤20 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤10 mg/kg, NH4+: ≤50 mg/kg, Na: ≤50 mg/kg, Ni: ≤20 mg/kg, Pb: ≤20 mg/kg, Zn: ≤20 mg/kg

SMILES string

O=[Mo](=O)=O

InChI

1S/Mo.3O

InChI key

JKQOBWVOAYFWKG-UHFFFAOYSA-N

General description

Molybdenum(VI) oxide (MoO3) is an acidic metal(VI) oxide. It is widely employed in selective oxidation reactions. Its temperature-programmed reduction has been reported. Kinetics and mechanism of its reduction in the presence of hydrogen, propene, butene-1 and CO has been investigated. It is reduced to metal upon reaction with hydrogen at high temperatures.

Application

Precursor to LAMOX fast ion conductors and superconductors.
Used in the solid state synthesis of a remarkable ternary, reduced molybdenum oxide, Pr4Mo9O18, whose structure contains previously unknown Mo7, Mo13 and Mo19 clusters. The new cluster product is a small band gap semiconductor.
Molybdenum(VI) oxide (MoO3) has been used as a starting material for the deposition of Mo (Molybdenum) over the MgO-330 and MgO-500 supports by employing methanol as solvent.

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pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

Carc. 2 - Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

69850-100G:4.548173360355E12

jan

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