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Merck
CN

12611

Sigma-Aldrich

碳酸钾

meets analytical specification of Ph. Helv., puriss., anhydrous, granulated, 99-101% (calc. to the dried substance)

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线性分子式:
K2CO3
CAS号:
分子量:
138.21
Beilstein:
4267587
EC 号:
MDL编号:
UNSPSC代码:
12352300
PubChem化学物质编号:
NACRES:
NA.21

质量水平

等级

puriss.

检测方案

99-101% (calc. to the dried substance)

形式

powder or crystals

质量

granulated
meets analytical specification of Ph. Helv.

杂质

residual solvents, complies
≤0.001% heavy metals (as Pb)

缺失

≤1% loss on drying, 120 °C, 5 h

pH值(酸碱度)

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

痕量阴离子

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤20 mg/kg

痕量阳离子

As: ≤1 mg/kg
Ca: ≤50 mg/kg
Fe: ≤10 mg/kg
Mg: ≤50 mg/kg
Na: ≤2000 mg/kg

适用性

complies for appearance of solution

SMILES字符串

[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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象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

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

靶器官

Respiratory system

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°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 catalyzed by phospha-palladacycles in non-aqueous ionic liquids.
Herrmann WA and Bohm VPW.
Journal of Organometallic Chemistry, 572(1), 141-145 (1999)
Heck reaction using palladium complexed to dendrimers on silica.
Alper H, et al.
Canadian Journal of Chemistry, 78(6), 920-924 (2000)

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