243558

Potassium carbonate sesquihydrate

ACS reagent, 99%

• Formule linéaire : K₂CO₃ · 1.5H₂O
• Numéro CAS: 6381-79-9
• Poids moléculaire : 165.23
• Numéro CE : 209-529-3
• Code UNSPSC : 12352302
• ID de substance PubChem : 24854510
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent
• Pureté: 98.5-101.0% (ACS specification); 99%
• Forme: crystals or granules; (Powder or Crystals or Granules or Chunks)
• Impuretés: ≤0.001% N compounds; ≤0.004% S compounds (as SO₄^2-); ≤0.005% silica; ≤0.01% NH₄OH pptd.; ≤0.01% insolubles
• Perte: 14.0-16.5% loss on heating
• Traces d'anions: chloride (Cl^-): ≤0.003%; phosphate (PO₄^3-): ≤0.001%
• Traces de cations: Ca: ≤0.005%; Fe: ≤5 ppm; Mg: ≤0.002%; Na: ≤0.02%; heavy metals: ≤5 ppm (by ICP-OES)
• Chaîne SMILES: O.O.O.[K+].[K+].[K+].[K+].[O-]C([O-])=O.[O-]C([O-])=O

Description

Description générale

Crystals of potassium carbonate sesquihydrate belong to the monoclinic crystal system and space group C2/c.

Application

Potassium carbonate sesquihydrate can be used as a sorbent for the removal of CO₂ from flue gas in precombustion process. It may be employed as a base in the cross-coupling of benzene boronic acid with benzoyl chloride in the presence of deposited Pd catalysts to give benzophenone.

It may also be used as one of the reaction components in the preparation of:

• 1,2,3-triethylimidazolium
• 1,2,3-triethyl-4-methylimidazolium
• 2-ethyl-1,3,4-trimethylimidazolium

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H315,H319,H335
• Conseils de prudence: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Classification des risques: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable