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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 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)
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)
K Y Foo et al.
Bioresource technology, 102(20), 9814-9817 (2011-08-30)
Rice husk (RH), an abundant by-product of rice milling, was used for the preparation of activated carbon (RHAC) via KOH and K(2)CO(3) chemical activation. The activation process was performed at the microwave input power of 600 W for 7 min.

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