791776
碳酸钾
anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
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关于此项目
线性分子式:
K2CO3
化学文摘社编号:
分子量:
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
碳酸钾是一种无机碱。它可作为碱参与环钯配合物催化的氯苯与苯乙烯的Heck反应。向K2CO3 （溶剂）中加入氨基酸（甘氨酸、肌氨酸和脯氨酸）可促进CO2的吸收。
Application
碳酸钾已用于制备双磺化双[4-(3-氨基苯氧基)苯基]砜，一种双磺化二胺单体。
它可用于以下研究：
它可用于以下研究：
- 作为合成多取代碘苯衍生物的试剂。
- 作为各种双酚类高分子量均聚物和共聚物合成反应所需碱。
- 作为芳基卤和芳基硼酸的Suzuki偶联反应所需碱。
- 苯乙烯和溴苯的Heck反应。
Features and Benefits
- 提高效率——免除需要松散硬化粉末的时间和精力
- 更加安全——避免使用工具大力敲碎团块的风险
- 更加经济——制备和溶剂化速度更快，提高效率并节约成本
- 质量保证——经过专业检测的出色品质，无抗结剂添加
- 灵活的用量选择——有从研究到放大级别的用量规格可供选择
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
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
商品
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
Brian Capozzi et al.
Journal of the American Chemical Society, 136(29), 10486-10492 (2014-07-09)
We have measured the single-molecule conductance of a family of oligothiophenes comprising 1-6 thiophene moieties terminated with methyl-sulfide linkers using the scanning tunneling microscope-based break-junction technique. We find an anomalous behavior: the peak of the conductance histogram distribution does not
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 791776-12KG | 04061832950594 |
| 791776-1KG | 04061832950600 |
| 791776-100G | 04061832950587 |
| 791776-2.5KG | 04061832950617 |
| 791776-500G | 04061832950624 |
| 791776-6X1KG | 04061832950631 |