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Merck

P5833

Potassium carbonate

BioXtra, ≥99.0%

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About This Item

Linear Formula:
K2CO3
CAS Number:
Molecular Weight:
138.21
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
EC Number:
209-529-3
Beilstein/REAXYS Number:
4267587
MDL number:
Assay:
≥99.0%
Form:
powder
Solubility:
H2O: 1 M, clear, colorless
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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

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.


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Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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Potassium Carbonate Promoted C-N Coupling Reaction between Benzamides and Aryl Iodides
Huang F, et al.
Synthesis, 50, 1090-1096 (2018)
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
Deshayes K
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)