69850

Molybdenum(VI) oxide

puriss. p.a., 99.5%

• Synonyme(s) : Molybdenum trioxide
• Formule linéaire : MoO₃
• Numéro CAS: 1313-27-5
• Poids moléculaire : 143.94
• Numéro CE : 215-204-7
• Numéro MDL: MFCD00003469
• Code UNSPSC : 12352303
• ID de substance PubChem : 329761261
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: puriss. p.a.
• Pureté: 99.5%
• Forme: powder
• Pf: 795 °C (lit.)
• Traces d'anions: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Traces de cations: 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
• Chaîne SMILES: O=[Mo](=O)=O
• InChI: 1S/Mo.3O
• Clé InChI: JKQOBWVOAYFWKG-UHFFFAOYSA-N

Description

Description générale

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

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.

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.

Informations sur la sécurité

• Pictogrammes: GHS08,GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H319,H335,H351
• Conseils de prudence: P202 - P261 - P264 - P271 - P305 + P351 + P338 - P308 + P313
• Classification des risques: Carc. 2 - Eye Irrit. 2 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable