791776
Potassium carbonate
anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
K2CO3
CAS 번호:
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%
Grade:
ACS reagent, anhydrous
Form:
powder
Quality Level
grade
ACS reagent, anhydrous
product line
Redi-Dri™
assay
≥99%
form
powder
quality
free-flowing
impurities
≤0.005% silica, ≤0.01% insolubles
pH
11-13 (25 °C, 138 g/L)
mp
891 °C (lit.)
anion traces
chloride (Cl-): ≤0.003%, phosphate (PO43-): ≤0.001%, sulfur compounds (as SO42-): ≤0.004%
cation traces
Ca: ≤0.005%, Fe: ≤5 ppm, Mg: ≤0.002%, Na: ≤0.02%, heavy metals (as Pb): ≤5 ppm
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. 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:
It may be used:
- 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.
- In the Heck reaction of styrene and bromobenzene.
Features and Benefits
- Increased efficiency – Eliminate time and effort of loosening hardened powders
- Safety – Avoid risks of using tools of force to break up clumps
- Economy – Faster preparation and solvation increase productivity and reduce costs
- Assured quality – Excellent, expert-tested quality with no anti-caking agents
- Flexible volumes – Available from research amounts to scale-up quantities
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
저장 등급
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
문서
Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.
Adam F Nugraha et al.
Polymers, 12(7) (2020-07-24)
Several methods to synthesize poly(phenylene) block copolymers through the nickel coupling reaction were attempted to reduce the use of expensive nickel catalysts in polymerization. The model reaction for poly(phenylene) having different types of dichlorobenzene derivative monomers illustrated the potential use
Yusuke Yagi et al.
Organic & biomolecular chemistry, 13(4), 1113-1121 (2014-11-26)
Fluorine-18 labeled radiotracers, such as [(18)F]fluorodeoxyglucose, can be used as practical diagnostic agents in positron emission tomography (PET). Furthermore, the properties of pharmaceuticals can be enhanced significantly by the introduction of fluorine groups into their original structures, and significant progress
Ellen Dirkx et al.
Journal of molecular and cellular cardiology, 76, 208-217 (2014-09-01)
In the insulin resistant heart, energy fuel selection shifts away from glucose utilization towards almost complete dependence on long-chain fatty acids (LCFA). This shift results in excessive cardiac lipid accumulation and eventually heart failure. Lipid-induced cardiomyopathy may be averted by