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310263

Sigma-Aldrich

Potassium carbonate

ReagentPlus®, 99%

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Linear Formula:
K2CO3
CAS Number:
Molecular Weight:
138.21
Beilstein/REAXYS Number:
4267587
EC Number:
MDL number:
PubChem Substance ID:

product line

ReagentPlus®

assay

99%

form

solid

pH

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

SMILES string

[K+].[K+].[O-]C([O-])=O

InChI

1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

BWHMMNNQKKPAPP-UHFFFAOYSA-L

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This Item
20961960109347825
vibrant-m

310263

Potassium carbonate

-
vibrant-m

209619

Potassium carbonate

-
vibrant-m

60109

Potassium carbonate

Essential Grade
vibrant-m

347825

Potassium carbonate

-
form

solid

form

powder or crystals

form

powder or crystals

form

powder

assay

99%

assay

≥99.0%

assay

≥99.0% (T)

assay

≥98%

pH

11-13 (25 °C, 138 g/L)

pH

11-13 (25 °C, 138 g/L)

pH

11-13 (25 °C, 138 g/L)

pH

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

mp

891 °C (lit.)

mp

891 °C (lit.)

mp

891 °C (lit.)

product line

ReagentPlus®

product line

-

product line

-

product line

-

General description

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.

Application

Potassium carbonate may be used in the following processes:
  • As a reagent in the synthesis of polysubstituted iodobenzene derivatives.
  • As a base for the Suzuki coupling of aryl halides with aryl boronic acids.
  • The Heck reaction of styrene and bromobenzene.
  • Preparation of disulfonated bis[4-(3-aminophenoxy)phenyl]sulfone, a disulfonated diamine monomer.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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A kinetic study of CO2 capture with potassium carbonate solutions promoted with various amino acids: glycine, sarcosine and proline.
Thee H, et al.
International Journal of Greenhouse Gas Control, 20, 212-222 (2014)
Polyamide interfacial composite membranes prepared from m-phenylene diamine, trimesoyl chloride and a new disulfonated diamine.
Xie W, et al.
Journal of Membrane Science, 403, 152-161 (2012)
Robert Möckel et al.
Organic letters, 17(7), 1644-1647 (2015-03-21)
The cobalt-catalyzed Diels-Alder reaction of trimethylsilyl-substituted alkynes with 1,3-dienes led to dihydroaromatic intermediates which were transformed into iodobenzene derivatives. For this transformation, the dihydroaromatic intermediates had to be oxidized and the trimethylsilyl-substituted arene had to undergo a silicon-iodine exchange reaction.
Chelating N-heterocyclic carbene ligands in palladium-catalyzed Heck-type reactions.
Herrmann WA, et al.
Journal of Organometallic Chemistry, 557(1), 93-96 (1998)
Heck reaction using palladium complexed to dendrimers on silica.
Alper H, et al.
Canadian Journal of Chemistry, 78(6), 920-924 (2000)

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