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P5833

Sigma-Aldrich

Potassium carbonate

BioXtra, ≥99.0%

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About This Item

Linear Formula:
K2CO3
CAS Number:
Molecular Weight:
138.21
Beilstein:
4267587
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21

product line

BioXtra

Quality Level

Assay

≥99.0%

form

powder

impurities

≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter

pH

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

solubility

H2O: 1 M, clear, colorless

anion traces

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.02%

cation traces

Al: ≤0.0005%
Ca: ≤0.001%
Cu: ≤0.0005%
Fe: ≤0.0005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.5%
Pb: ≤0.001%
Zn: ≤0.0005%

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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General description

Potassium carbonate is an inorganic base that is used in the alkylation of phenols and 1,3-dicarbonyl compounds, as well as the generation of sulfur and phosphorus ylides. It is also used to dry organic solvents.

Application

Potassium carbonate can be used as a catalyst in the:
  • Markovnikov addition reactions.
  • Suzuki cross-coupling reactions.
It can also be used as a base for the N-arylation of benzamides via C-N coupling reaction.

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Potassium carbonate as a green catalyst for Markovnikov addition of azoles to vinyl acetate in PEG
Kidwai M, et al.
Green Chemistry Letters and Reviews, 6, 63-68 (2013)
Potassium Carbonate Promoted C-N Coupling Reaction between Benzamides and Aryl Iodides
Huang F, et al.
Synthesis, 50, 1090-1096 (2018)
Potassium Carbonate
Deshayes K
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)
Application of experimental design and multivariate analysis in the on-line reaction monitoring of a Suzuki cross-coupling reaction by Raman spectroscopy and multivariate analysis
Hetemi D, et al.
Vibrational Spectroscopy, 100, 93-98 (2019)
Carlos Arroniz et al.
Organic letters, 15(4), 910-913 (2013-02-05)
ortho-Arylation of ortho-substituted benzoic acids is a challenging process due to the tendency of the reaction products toward Pd-catalyzed protodecarboxylation. A simple method for preventing decarboxylation in sterically hindered benzoic acids is reported. The method described represents a reliable and

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