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P5833

Sigma-Aldrich

Potassium carbonate

BioXtra, ≥99.0%

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Linear Formula:
K2CO3
CAS Number:
Molecular Weight:
138.21
Beilstein:
4267587
EC Number:
MDL number:
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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This Item
347825367877900502
Potassium carbonate BioXtra, ≥99.0%

Sigma-Aldrich

P5833

Potassium carbonate

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

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347825

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Potassium carbonate 99.995% trace metals basis

Sigma-Aldrich

367877

Potassium carbonate

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

Sigma-Aldrich

900502

Potassium carbonate

form

powder

form

powder

form

powder and chunks

form

powder

impurities

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

impurities

-

impurities

≤55.0 ppm Trace Metal Analysis

impurities

-

pH

11-13 (25 °C, 138 g/L)

pH

11-13 (25 °C, 138 g/L)

pH

-

pH

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

mp

891 °C (lit.)

mp

891 °C (lit.)

mp

891 °C (lit.)

solubility

H2O: 1 M, clear, colorless

solubility

-

solubility

H2O: soluble 138 g/L at 20 °C (completely)

solubility

-

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


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25G
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Kidwai M, et al.
Green Chemistry Letters and Reviews, 6, 63-68 (2013)
Potassium Carbonate
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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
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