乙酸钾,99%_500g

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500g

RH313338

A16321.36

1kg单位:

3-45品 牌:飞世尔/Fisher

1

化学性质
分子式: CH3CO2K
分子量: 98.15
熔点: 292°
密度: 1.57
灵敏度: Hygroscopic. Ambient temperatures.
形态: Crystalline powder
溶解性: Soluble in water, alcohol and ammonia. Insoluble in acetone and ether.
参考文献

Has been found to give faster reaction than sodium acetate in the Perkin condensation of carboxylic acid anhydrides with aromatic aldehydes: Org. Synth. Coll.3, 127, 426 (1955); review: Org. React.1, 210 (1942).

The nucleophilicity of acetate anion, e.g. in benzene or acetonitrile, is greatly increased in the presence of 18-crown-6: Tetrahedron Lett., 2417 (1974). In a comparative study of various anions in acetonitrile, 'naked' acetate, formed in this manner, was surprisingly found to be the most nucleophilic: Tetrahedron Lett., 4205 (1975).

应用
Potassium acetate is used as deicer to remove snow and ice from the surface and considered as a replacement for calcium chloride or magnesium chloride. It is used as a food additive, as a buffer in biological research, as an extinguishing agent used in class K fire extinguishers and as a catalyst to produce polyurethane polymers. It is utilized for the precipitation of dodecyl sulfate bound proteins, thereby removal of proteins from DNA. It plays an important role in preserving tissues, fixation and mummification.
备注
Hygroscopic. Air and moisture sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents.
其他参考资料:
Beilstein: 3595449
Merck: 14,7605
危险与安全
TSCA:
RTECS: AJ3325000
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