232084

Molybdic acid

≥85.0% MoO₃ basis, ACS reagent

• Numéro CAS: 7782-91-4
• Numéro CE : 231-970-5
• Numéro MDL: MFCD00036287
• Code UNSPSC : 12352300
• ID de substance PubChem : 329752396
• Nomenclature NACRES : NB.24

Propriétés

• Qualité: ACS reagent
• Densité de vapeur: 6.2 (vs air)
• Pureté: ≥85.0% MoO₃ basis
• Forme: powder
• Pertinence de la réaction: reagent type: catalyst; core: molybdenum
• Impuretés: ≤0.01% insol. dil. NH₄OH
• Solubilité: water: insoluble
• Densité: 3.1 g/mL at 25 °C (lit.)
• Traces d'anions: AsO₄^3-, PO₄^3- and SiO₂: ≤0.001%; chloride (Cl^-): ≤0.002%; phosphate (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤0.2%
• Traces de cations: heavy metals: ≤0.003%
• Chaîne SMILES: O[Mo](O)(=O)=O
• InChI: 1S/Mo.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2
• Clé InChI: VLAPMBHFAWRUQP-UHFFFAOYSA-L

Description

Description générale

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

Application

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.

Autres remarques

Consists largely of an ammonium molybdate

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable