267856

Molybdenum(VI) oxide

ACS reagent, ≥99.5%

• Synonym(s): Molybdenum trioxide
• Linear Formula: MoO₃
• CAS Number: 1313-27-5
• Molecular Weight: 143.94
• EC Number: 215-204-7
• MDL number: MFCD00003469
• UNSPSC Code: 12352303
• PubChem Substance ID: 329752884
• NACRES: NA.21

Properties

• grade: ACS reagent
• assay: ≥99.5%
• form: powder
• reaction suitability: reagent type: catalyst; core: molybdenum
• impurities: ≤0.01% insol. dil. NH₄OH
• mp: 795 °C (lit.)
• anion traces: AsO₄^3-, PO₄^3- and SiO₂: ≤0.001%; chloride (Cl^-): ≤0.002%; nitrate (NO₃^-): passes test; phosphate (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤0.02%
• cation traces: NH₄⁺: ≤0.002%; heavy metals (as Pb): ≤0.005%
• SMILES string: O=[Mo](=O)=O
• InChI: 1S/Mo.3O
• InChI key: JKQOBWVOAYFWKG-UHFFFAOYSA-N

Description

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.

Safety Information

• pictograms: GHS08,GHS07
• signalword: Warning
• hcodes: H319,H335,H351
• pcodes: P202 - P261 - P264 - P271 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Carc. 2 - Eye Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable