209619

Potassium carbonate

ACS reagent, ≥99.0%

• Fórmula lineal: K₂CO₃
• Número de CAS: 584-08-7
• Peso molecular: 138.21
• Beilstein: 4267587
• Número CE: 209-529-3
• Número MDL: MFCD00011382
• Código UNSPSC: 12352302
• ID de la sustancia en PubChem: 329752063
• NACRES: NA.21
• Ensayo: ≥99.0%
• grado: ACS reagent
• Formulario: powder or crystals

Propiedades

• grado: ACS reagent
• Nivel de calidad: 200
• Ensayo: ≥99.0%
• Formulario: powder or crystals
• impurezas: ≤0.004% S compounds as (SO₄^2-) ; ≤0.005% silica; ≤0.01% insolubles
• pH: 11-13 (25 °C, 138 g/L)
• mp: 891 °C (lit.)
• trazas de anión: chloride (Cl^-): ≤0.003%; phosphate (PO₄^3-): ≤0.001%
• trazas de catión: Ca: ≤0.005%; Fe: ≤5 ppm; Mg: ≤0.002%; Na: ≤0.02%; heavy metals: ≤5 ppm (by ICP-OES)
• cadena SMILES: [K+].[K+].[O-]C([O-])=O
• InChI: 1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• Clave InChI: BWHMMNNQKKPAPP-UHFFFAOYSA-L

Descripción

Descripción general

Potassium carbonate is an inorganic base. It participates as a base in the palladacycle catalyzed Heck reaction of chlorobenzene with styrene. Addition of amino acids (glycine, sarcosine and proline) to K₂CO₃ (solvent) promotes the absorption of CO₂.

Aplicación

Potassium carbonate has been used in the preparation of disulfonated bis[4-(3-aminophenoxy)phenyl]sulfone, a disulfonated diamine monomer.
It may be used in the following studies:

• As a reagent in the synthesis of polysubstituted iodobenzene derivatives.
• As a base for the synthesis of high molecular weight homopolymers and copolymers derived from various bisphenols.
• As a base for the Suzuki coupling of aryl halides with aryl boronic acids.
• The Heck reaction of styrene and bromobenzene.

Otras notas

Go to Redi-Dri^™ Product Listing 791766

Información legal

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Información de seguridad

• Pictogramas: GHS07
• Palabra de señalización: Warning
• Frases de peligro: H315,H319,H335
• Consejos de prudencia: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Clasificaciones de peligro: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Órganos de actuación: Respiratory system
• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable