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127-08-2 - Potassium acetate, 99% - Acetic acid potassium salt - A16321 - Alfa Aesar

A16321 Potassium acetate, 99%

Codice CAS
127-08-2
Sinonimi
Acetic acid potassium salt

Dimensioni Prezzo ($) Quantità Disponibilità
500g 30,80
2500g 120,00
10000g 413,00
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Potassium acetate, 99%

MDL
MFCD00012458
EINECS
204-822-2

Proprietà chimiche

Formula
CH3CO2K
Peso formula
98.15
Punto di fusione
292°
Densità
1.57
Sensibilità
Hygroscopic
Solubilità
Soluble in water, alcohol and ammonia. Insoluble in acetone and ether.

Applicazioni

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.

Note

Hygroscopic. Air and moisture sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents.

Letteratura

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).

Kathiravan, S.; Nicholls, I. A. Palladium Catalyzed Vinyltrifluoromethylation of Aryl Halides through Decarboxylative Cross-Coupling with 2-(Trifluoromethyl) acrylic Acid. Org. Lett. 2015, 17 (8), 1874-1877.

Rodríguez-Palmeiro, I.; Rodríguez-Escontrela, I.; Rodríguez, O.; Arce, A.; Soto, A. Characterization and interfacial properties of the surfactant ionic liquid 1-dodecyl-3-methyl imidazolium acetate for enhanced oil recovery. RSC Adv. 2015, 5 (47), 37392-37398.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H303

May be harmful if swallowed.

Dichiarazioni precauzionali: P312a

Call a POISON CENTER/doctor if you feel unwell.

Altri riferimenti

Merck
14,7605
Beilstein
3595449
Codice tariffe armonizzato
2915.29
TSCA
Yes
RTECS
AJ3325000

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