232084

Molybdänsäure

≥85.0% MoO₃ basis, ACS reagent

• CAS-Nummer: 7782-91-4
• EG-Nummer: 231-970-5
• MDL-Nummer: MFCD00036287
• UNSPSC-Code: 12352300
• PubChem Substanz-ID: 329752396
• NACRES: NB.24

Eigenschaften

• Qualität: ACS reagent
• Dampfdichte: 6.2 (vs air)
• Assay: ≥85.0% MoO₃ basis
• Form: powder
• Eignung der Reaktion: reagent type: catalyst; core: molybdenum
• Verunreinigungen: ≤0.01% insol. dil. NH₄OH
• Löslichkeit: water: insoluble
• Dichte: 3.1 g/mL at 25 °C (lit.)
• Anionenspuren: AsO₄^3-, PO₄^3- and SiO₂: ≤0.001%; chloride (Cl^-): ≤0.002%; phosphate (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤0.2%
• Kationenspuren: heavy metals: ≤0.003%
• SMILES String: O[Mo](O)(=O)=O
• InChI: 1S/Mo.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2
• InChIKey: VLAPMBHFAWRUQP-UHFFFAOYSA-L

Beschreibung

Allgemeine Beschreibung

Molybdic acid is the hydrated form of molybdenum trioxide. It is used in the synthesis Froehde reagent.

Anwendung

Molybdic acid can be used:

• In the preparation of silica-supported molybdic acid catalyst for the synthesis of pyrano [2,3-c] chromene derivatives by condensation of aldehydes, malononitrile, and 4-hydroxycoumarin.
• In the synthesis of Froehde reagent for the presumptive identification of alkaloids like opioids.
• As a molybdenum source in the preparation of MoSe₂.

Sonstige Hinweise

Besteht hauptsächlich aus Ammoniummolybdat.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable