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

A16321 Potassium acetate, 99%

Numéro de CAS
127-08-2
Synonymes
Acetic acid potassium salt

Conditionnement Prix ($) Quantité Disponibilité
500g 30,80
2500g 120,00
10000g 413,00
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Potassium acetate, 99%

MDL
MFCD00012458
EINECS
204-822-2

Propriétés chimiques

Formule
CH3CO2K
Poids moleculaire
98.15
Point de fusion
292°
Densité
1.57
Sensibilité
Hygroscopic
Solubilité
Soluble in water, alcohol and ammonia. Insoluble in acetone and ether.

Applications

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.

Notes

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

Références bibliographiques

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.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H303

May be harmful if swallowed.

Mentions de prudence: P312a

Autres références

Merck
14,7605
Beilstein
3595449
Code tarifaire harmonisé
2915.29
TSCA
Yes
RTECS
AJ3325000

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Catalyseurs

Analytique et matériel de laboratoire