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Merck
CN

236497

乙酸钾

ACS reagent, ≥99.0%

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线性分子式:
CH3COOK
化学文摘社编号:
127-08-2
分子量:
98.14
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
329752436
EC Number:
204-822-2
Beilstein/REAXYS Number:
3595449
MDL number:
MFCD00012458
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder or crystals
Solubility:
water: soluble 98.2 g/L at 20 °C

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产品名称

乙酸钾, ACS reagent, ≥99.0%

InChI key

SCVFZCLFOSHCOH-UHFFFAOYSA-M

InChI

1S/C2H4O2.K/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1

SMILES string

[K+].CC([O-])=O

grade

ACS reagent

vapor pressure

<0.0000001 hPa ( 25 °C)

assay

≥99.0%

form

powder or crystals

impurities

≤0.005% insolubles

pH

6.5-9.0 (25 °C, 5%)

solubility

water: soluble 98.2 g/L at 20 °C

density

1.57 g/cm3 at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.003%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.002%

cation traces

Ca: ≤0.005%
Fe: ≤5 ppm
Mg: ≤0.002%
Na: ≤0.03%
heavy metals: ≤5 ppm (as Pb)

suitability

complies for IR spectroscopy

Quality Level

200

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相关类别

Application

乙酸钾用作：
  • 以DEG（二甘醇）为溶剂糖酵解硬质聚胺酯的催化剂。
  • 用于加成和聚合反应的亲核催化剂。
  • 环氧化物和 S-苯基硫代酸酯区域选择性反应的亲核催化剂。
  • 过渡金属催化反应的促进剂/碱。
  • 在邻苯二甲酰亚胺的光脱羧基亲核加成反应中作为甲基自由基来源，以及模板反应中作为钾离子来源。

乙酸钾还可以作为碱：
  • 用于异羟肟酸的洛森重排反应。
  • 用于E2 消除′反应。
  • 用于 α,α-二氯酮酯裂解和醇类的去质子化。

General description

乙酸钾是一种吸湿性材料，在有机合成中用作碱。它还可作为缓冲溶剂和中和剂。

Other Notes

转至Redi-Dri™产品列表 791733

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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
0000524725
0000524724
0000524724
0000524725
0000521441

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