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Merck

791776

Sigma-Aldrich

Potassium carbonate

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99%

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About This Item

Fórmula lineal:
K2CO3
Número de CAS:
Peso molecular:
138.21
Beilstein:
4267587
Número CE:
Número MDL:
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
NACRES:
NA.21

grado

ACS reagent
anhydrous

Nivel de calidad

Línea del producto

Redi-Dri

Análisis

≥99%

formulario

powder

calidad

free-flowing

impurezas

≤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 (PO43-): ≤0.001%
sulfur compounds (as SO42-): ≤0.004%

trazas de catión

Ca: ≤0.005%
Fe: ≤5 ppm
Mg: ≤0.002%
Na: ≤0.02%
heavy metals (as Pb): ≤5 ppm

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

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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:
  • 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.
  • In the Heck reaction of styrene and bromobenzene.

Características y beneficios

  • Increased efficiency – Eliminate time and effort of loosening hardened powders
  • Safety – Avoid risks of using tools of force to break up clumps
  • Economy – Faster preparation and solvation increase productivity and reduce costs
  • Assured quality – Excellent, expert-tested quality with no anti-caking agents
  • Flexible volumes – Available from research amounts to scale-up quantities

Información legal

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

Pictogramas

Exclamation mark

Palabra de señalización

Warning

Frases de peligro

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


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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