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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
Assay:
≥99.0%
form:
powder
solubility:
H2O: 1 M, clear, colorless

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


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

JAN Code

P5833-500G-D:
P5833-1KG:
P5833-BULK:
P5833-VAR-D:
P5833-500G-CH:
P5833-500G:
P5833-1KG-D:
P5833-VAR:


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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)
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)
Potassium Carbonate
Deshayes K
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)
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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