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:
分子量:
98.14
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
EC Number:
204-822-2
Beilstein/REAXYS Number:
3595449
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder or crystals
Solubility:
water: soluble 98.2 g/L at 20 °C
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
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Application
乙酸钾用作：
乙酸钾还可以作为碱：
- 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
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
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Obataya E and Minato K.
Wood Science and Technology, 42(7), 567-577 (2008)
Eagleson M.
Concise Encyclopedia Chemistry, 886-886 (1994)
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Eukaryotic cell, 10(12), 1592-1606 (2011-11-01)
Light microscopy and deep-etch electron microscopy were used to visualize triacylglyceride (TAG)-filled lipid bodies (LBs) of the green eukaryotic soil alga Chlamydomonas reinhardtii, a model organism for biodiesel production. Cells growing in nitrogen-replete media contain small cytoplasmic lipid bodies (α-cyto-LBs)
Yuval Erez et al.
The journal of physical chemistry. A, 116(9), 2039-2048 (2012-02-10)
Steady-state and time-resolved emission techniques were employed to study the effect of acetate, a mild base, on the luminescence of curcumin in methanol and ethanol. We found that the steady-state emission intensity as well as the average fluorescence decay time
Jay D Gralla et al.
The EMBO journal, 25(7), 1515-1521 (2006-03-17)
Potassium glutamate accumulates upon hyper-osmotic shock and serves as a temporary osmoprotectant. This salt leads to transcriptional activation of sets of genes that allow the cell to achieve long-term adaptation to high osmolarity. The current experiments show that potassium glutamate
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