708348

Siliciummolybdänsäure -Lösung

• Synonym(e): Keggin heteropoly acid
• Lineare Formel: H₄SiO₄ · 12MoO₃
• CAS-Nummer: 11089-20-6
• MDL-Nummer: MFCD00054151
• UNSPSC-Code: 12352301
• PubChem Substanz-ID: 329762788
• NACRES: NA.22

Eigenschaften

• Form: liquid
• Qualitätsniveau: 100
• Brechungsindex: n20/D 1.376
• Dichte: 1.156 g/mL at 25 °C
• SMILES String: O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](=O)(=O)O[Si](O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](O)(=O)=O)(O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](O)(=O)=O)O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](O)(=O)=O
• InChI: 1S/12Mo.O4Si.4H2O.32O/c;;;;;;;;;;;;1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h;;;;;;;;;;;;;4*1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;8*+1;-4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-4
• InChIKey: LMAWUDMBHTZUCF-UHFFFAOYSA-J

Beschreibung

Anwendung

Reactant for:

• Use in electrostatic synthesis of compounds comprising ultrathin layers of silicododecamolybdate anions and poly(allyl ammonium) cations
• Preparation of charge transfer compounds with Keggin anions and 2,2′-biquinolinium

Silicomolybdic acid (Keggin Acid, SMA) can be used to prepare supported acid catalysts for various organic transformations. For example, it is used to prepare:

• SMA immobilized on mesoporous silica spheres for hydrolysis of ammonia borane.
• SMA doped carbon-ceramic composite electrodes for electrocatalytic reduction of bromate.
• SMA supported on silica gel (SiO₂) for Hosomi–Sakurai allylation of carbonyl compounds.
• SMA supported on mesoporous SiO₂ hollow spheres for Friedel–Crafts alkylation reaction.

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H315,H319,H335
• P-Sätze: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 12 - Non Combustible Liquids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable