25059
乙酸钾
puriss., meets analytical specification of Ph. Eur., BP, E261, 99-101%
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线性分子式:
CH3COOK
化学文摘社编号:
分子量:
98.14
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
EC Number:
204-822-2
Beilstein/REAXYS Number:
3595449
MDL number:
Assay:
99-101%
Form:
crystalline
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
vapor pressure
<0.0000001 hPa ( 25 °C)
grade
puriss.
assay
99-101%
form
crystalline
quality
meets analytical specification of Ph. Eur., BP, E261
impurities
residual solvents, complies, ≤0.0004% heavy metals (as Pb), ≤0.05% KMnO4 red. matter (as HCOOH)
loss
≤1% loss on drying, 150 °C, 2 h
pH
7.5-9 (20 °C, 5%)
density
1.57 g/cm3 at 25 °C (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg
cation traces
Al: ≤1 mg/kg, As: ≤2 mg/kg, Ca: ≤50 mg/kg, Cu: ≤4 mg/kg, Fe: ≤10 mg/kg, Mg: ≤30 mg/kg, Na: ≤5000 mg/kg, Pb: ≤4 mg/kg, Zn: ≤10 mg/kg
Quality Level
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General description
醋酸钾是一种吸湿性钾盐。它可以通过用氢氧化钾或碳酸钾中和乙酸来制备。它可以作为聚合和加成反应的亲核催化剂，在取代和加成反应中作为醋酸阴离子的来源。它可以在各种有机反应中用作碱和促进剂。
Application
醋酸钾用作催化剂：
醋酸钾也用作促进剂：
- 以糠醛和棕榈酸酐为原料制备 2-十六烷基呋喃。
- 醋酸钾可用作碱：羟肟酸到氨基甲酸的 Lossen 重排。
- In E2 E2 消除反应。
- 从烷氧基酰胺底物形成内酯。
醋酸钾也用作促进剂：
- 钯催化剂环境下芳基氯化物与双(频哪醇合)二硼的硼化反应。
- α, β-不饱和酮的 β-硼化。
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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