900502
Potassium carbonate
anhydrous, free-flowing, −325 mesh, Redi-Dri™, reagent grade, ≥98%
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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:
≥98%
Grade:
anhydrous, reagent grade
Form:
powder
InChI key
BWHMMNNQKKPAPP-UHFFFAOYSA-L
InChI
1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
SMILES string
[K+].[K+].[O-]C([O-])=O
grade
anhydrous, reagent grade
product line
Redi-Dri™
assay
≥98%
form
powder
quality
free-flowing
particle size
−325 mesh
pH
11-13 (25 °C, 138 g/L)
mp
891 °C (lit.)
Quality Level
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General description
Potassium carbonate is an inorganic base. It participates as base in the palladacycle catalyzed Heck reaction of chlorobenzene with styrene.
Application
Potassium carbonate was used in the following studies:
- Synthesis of polysubstituted iodobenzene derivatives.
- As base for the synthesis of high molecular weight homopolymers and copolymers derived from various bisphenols.
- As base for the Suzuki coupling of aryl halides with aryl boronic acids.
- As base for the Heck reaction of styrene and bromobenzene.
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
signalword
Warning
hcodes
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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Synthesis, kinetic observations and characteristics of polyarylene ether sulphones prepared via a potassium carbonate DMAC process.
Viswanathan R, et al.
Polymer, 25(12), 1827-1836 (1984)
Robert Möckel et al.
Organic letters, 17(7), 1644-1647 (2015-03-21)
The cobalt-catalyzed Diels-Alder reaction of trimethylsilyl-substituted alkynes with 1,3-dienes led to dihydroaromatic intermediates which were transformed into iodobenzene derivatives. For this transformation, the dihydroaromatic intermediates had to be oxidized and the trimethylsilyl-substituted arene had to undergo a silicon-iodine exchange reaction.
Chelating N-heterocyclic carbene ligands in palladium-catalyzed Heck-type reactions.
Herrmann WA, et al.
Journal of Organometallic Chemistry, 557(1), 93-96 (1998)
Heck reaction using palladium complexed to dendrimers on silica.
Alper H, et al.
Canadian Journal of Chemistry, 78(6), 920-924 (2000)
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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