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124-43-6 - Urea hydrogen peroxide adduct, 97% - Hydrogen peroxide urea adduct - Percarbamide - L13940 - Alfa Aesar

L13940 Urea hydrogen peroxide adduct, 97%

Codice CAS
124-43-6
Sinonimi
Hydrogen peroxide urea adduct
Percarbamide

Dimensioni Prezzo ($) Quantità Disponibilità
25g 20,91
100g 35,23
500g 74,68
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Urea hydrogen peroxide adduct, 97%

MDL
MFCD00013119
EINECS
204-701-4

Proprietà chimiche

Formula
CH4N2O•H2O2
Peso formula
94.07
Punto di fusione
ca 90° dec.
Sensibilità
Hygroscopic
Solubilità
Soluble in water.

Applicazioni

Urea hydrogen peroxide is an antiseptic, disinfectant and bleaching agent used in pharmaceuticals and cosmetics respectively. It is used in the whitening of teeth and relieves minor inflammation of gums, oral mucosal surfaces and lips. It finds application in the preparation of plastics, blue print development and starch modification. In addition to this, it is used as a source of hydrogen peroxide easily handled in the laboratory.

Note

Incompatible with acetic anhydride, aniline and carboxylic acids.

Letteratura

Useful, low-hazard alternative to high-concentration H2O2 in epoxidations, Baeyer-Villiger reactions, N-oxidations, etc.: Synlett, 533 (1990). Alkenes can be epoxidized in high yield in 1,1,1,3,3,3-Hexafluoro-2-propanol, A12747 as solvent: Eur. J. Org. Chem., 3290 (2002). For use in combination with N,N'-Dicyclohexyl­carbodiimide, A10973 , in epoxidation of alkenes, see: J. Org. Chem., 63, 1730 (1998); in combination with Maleic anhydride, A12178 , for epoxidation and Baeyer-Villiger reactions: Heterocycles, 36, 1075 (1993). For an extensive review of the Baeyer-Villiger reaction, see: Org. React., 43, 251 (1993).

For use in partial oxidation of nitriles to amides, see: Synth. Commun., 23, 3149 (1993).

In combination with phthalic anhydride is an effective mild and safe oxidant for N-heteroaromatic compounds and tertiary amines to N-oxides: Chem. Ber., 125, 1965 (1992)

Can be used to generate the powerful oxidant peroxytrifluoroacetic acid from TFAA, avoiding the use of hazardous 90% H2O2: Tetrahedron Lett., 33, 4835 (1992). The same system has also been reported for oxidation of electron-deficient pyridines to the N-oxides: Tetrahedron Lett., 41, 2299 (2000). Similarly, performic acid can be generated in situ, providing a mild system for oxidation of aromatic aldehydes to benzoic acids: Synth. Commun., 31, 2195 (2001). See also Sodium percarbonate, A16045 .

Yazu, K.; Takanohashi, T. Oxidative Desulfurization of Coal Tar Pitch Using a Urea-Hydrogen Peroxide Complex/Carboxylic Anhydride System in THF. Chem. Lett. 2015, 44 (2), 169-170.

Nikoorazm, M.; Ghorbani-Choghamarani, A.; Ghorbani, F.; Mahdavi, H.; Karamshahi, Z. Bidentate salen Cu(II) complex functionalized on mesoporous MCM-41 as novel nano catalyst for the oxidative coupling of thiols into disulfides using urea hydrogen peroxide (UHP). J. Porous Mater. 2015, 22 (1), 261-267.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H272-H314-H318

May intensify fire; oxidizer. Causes severe skin burns and eye damage. Causes serious eye damage.

Dichiarazioni precauzionali: P221-P210-P260-P220-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

Take any precaution to avoid mixing with combustibles. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapours/spray. Keep/Store away from clothing/combustible materials. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,1782
Beilstein
3680414
Classe di rischio
5.1
Gruppo di imballaggio
III
Codice tariffe armonizzato
2847.00
TSCA
Yes
RTECS
T4860000

Raccomandato

  • A12733

    TEMPO, free radical, 98+%
  • A16045

    Sodium percarbonate, 13-14% active oxygen
  • L00286

    3-Chloroperoxybenzoic acid, 50-55%, cont. ca 10% 3-chlorobenzoic acid, balance water
  • L14000

    Hydrogen peroxide, 35% w/w aq. soln., stab.
  • L18478

    Methyltrioxorhenium(VII), 98%

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