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900502

Sigma-Aldrich

Potassium carbonate

anhydrous, free-flowing, −325 mesh, Redi-Dri, reagent grade, ≥98%

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

grade

anhydrous
reagent grade

Quality Level

product line

Redi-Dri

Assay

≥98%

form

powder

quality

free-flowing

particle size

−325 mesh

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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1 of 4

This Item
60109347825310263
Potassium carbonate anhydrous, free-flowing, −325 mesh, Redi-Dri™, reagent grade, ≥98%

Sigma-Aldrich

900502

Potassium carbonate

Potassium carbonate puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

Sigma-Aldrich

60109

Potassium carbonate

Potassium carbonate reagent grade, ≥98%, powder, −325 mesh

Sigma-Aldrich

347825

Potassium carbonate

Potassium carbonate ReagentPlus®, 99%

Sigma-Aldrich

310263

Potassium carbonate

assay

≥98%

assay

≥99.0% (T)

assay

≥98%

assay

99%

form

powder

form

powder or crystals

form

powder

form

solid

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.)

Quality Level

100

Quality Level

-

Quality Level

-

Quality Level

-

General description

Potassium carbonate is an inorganic base. It participates as base in the palladacycle catalyzed Heck reaction of chlorobenzene with styrene.

Application

Potassium carbonate was used in the following studies:
  • Synthesis of polysubstituted iodobenzene derivatives.
  • As base for the synthesis of high molecular weight homopolymers and copolymers derived from various bisphenols.
  • As base for the Suzuki coupling of aryl halides with aryl boronic acids.
  • As base for the Heck reaction of styrene and bromobenzene.

Legal Information

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names


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Synthesis, kinetic observations and characteristics of polyarylene ether sulphones prepared via a potassium carbonate DMAC process.
Viswanathan R, et al.
Polymer, 25(12), 1827-1836 (1984)
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)
Heck reaction catalyzed by phospha-palladacycles in non-aqueous ionic liquids.
Herrmann WA and Bohm VPW.
Journal of Organometallic Chemistry, 572(1), 141-145 (1999)

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