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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:
584-08-7
分子量:
138.21
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
329768290
EC Number:
209-529-3
Beilstein/REAXYS Number:
4267587
MDL number:
MFCD00011382
Assay:
≥99%
Grade:
ACS reagent, anhydrous
Form:
powder
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Quality Level

100

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：
  • 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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pictograms

Exclamation mark
GHS07

signalword

Warning

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
0000480348
0000480347
0000512454
0000480345
0000480343

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全球贸易项目编号

货号GTIN
791776-12KG04061832950594
791776-1KG04061832950600
791776-100G04061832950587
791776-500G04061832950624
791776-2.5KG04061832950617
791776-6X1KG04061832950631