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57-13-6 - Urea, 98+% - Carbamide - A12360 - Alfa Aesar

A12360 Urea, 98+%

CAS-Nummer
57-13-6
Synonyme
Carbamide

Größe Preis ($) Menge Verfügbarkeit
500g 18,95
2500g 32,96
10000g 92,08
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

Urea, 98+%

MDL
MFCD00008022
EINECS
200-315-5

Chemische Eigenschaften

Formel
NH2CONH2
Molmasse
60.06
Schmelzpunkt
130-135°
Dichte
1.335
Löslichkeit
Soluble in water, alcohol, methanol, glycerol, benzene and concentrated hydrochloric acid. Practically insoluble in chloroform and ether.

Anwendungen

Used as a protein denaturantUrea is a raw fabric for the manufacture of organic resins and is used as protein denaturant sealant and in agriculture, dyes, fuels, functional fluids, intermediates, paint additives and coating additives. Urea is used as a nitrogen-release fertilizer, on-corroding alternative to rock salt for road de-icing, browning agent in factory-produced pretzels, cloud seeding agent, a deep eutectic solvent and type of ionic liquid.

Bemerkungen

Stable at room temperature. Incompatible with strong oxidizing agents.

Literaturverweise

Widely used in diazotization reactions for the destruction of excess HNO2.

For the one-pot conversion of carboxylic acids to nitriles, by heating with urea in the presence of 1.5-2.0 moles of sulfamic acid, see: Chimia, 25, 94 (1971).

For a procedure for conversion of carboxylic acids to primary amides by heating with urea, see: Org. Synth. Coll., 3, 768 (1955); 4, 513 (1963).

Reacts with alcohols on prolonged heating to give alkyl carbamates; see, e.g.: Org. Synth. Coll., 1, 140 (1941).

Zhang, Y.; Han, C.; Nadagouda, M. N.; Dionysiou, D. D. The fabrication of innovative single crystal N, F-codoped titanium dioxide nanowires with enhanced photocatalytic activity for degradation of atrazine. Appl. Catal. B 2015, 168-169, 550-558.

Amendola, V.; Fabbrizzi, L.; Mosca, L. Anion recognition by hydrogen bonding: urea-based receptors. Chem. Soc. Rev. 2010, 39, 3889-3915.

Weitere Referenzen

Merck
14,9867
Beilstein
635724
Harmonized Tariff Code
3102.10
TSCA
Yes
RTECS
YR6250000

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