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209619 Sigma-Aldrich

Potassium carbonate

ACS reagent, ≥99.0%

  • CAS Number 584-08-7

  • Linear Formula K2CO3

  • Molecular Weight 138.21

  •  Beilstein/REAXYS Number 4267587

  •  EC Number 209-529-3

  •  MDL number MFCD00011382

  •  PubChem Substance ID 329752063

  •  NACRES NA.21

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Properties

Related Categories Adsorbents, Filter Aids and Drying Agents, Essential Chemicals, Other Drying Agents, Potassium Salts, Research Essentials,
Quality Level   200
grade   ACS reagent
assay   ≥99.0%
impurities   ≤0.004% S compounds as (SO42-)
  ≤0.005% silica
  ≤0.01% insolubles
mp   891 °C (lit.)
anion traces   chloride (Cl-): ≤0.003%
  phosphate (PO43-): ≤0.001%
cation traces   Ca: ≤0.005%
  Fe: ≤5 ppm
  Mg: ≤0.002%
  Na: ≤0.02%
  heavy metals: ≤5 ppm (by ICP-OES)
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

Description

General description

Potassium carbonate is an inorganic base. It participates as a base in the palladacycle catalyzed Heck reaction of chlorobenzene with styrene. Addition of amino acids (glycine, sarcosine and proline) to K2CO3 (solvent) promotes the absorption of CO2.

Application

Potassium carbonate has been used in the preparation of disulfonated bis[4-(3-aminophenoxy)phenyl]sulfone, a disulfonated diamine monomer.
It may be used in the following studies:
• As a reagent in the synthesis of polysubstituted iodobenzene derivatives.
• As a base for the synthesis of high molecular weight homopolymers and copolymers derived from various bisphenols.
• As a base for the Suzuki coupling of aryl halides with aryl boronic acids.
• The Heck reaction of styrene and bromobenzene.

Packaging

100, 500 g in poly bottle

2.5, 12 kg in poly drum

Other Notes

Go to Redi-Dri Product Listing 791766

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Target organs 
Respiratory system
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
RTECS 
TS7750000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Single- & multi-channel pipettes from BRAND
Protocols & Articles
Peer-Reviewed Papers
15

References

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