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Key Documents

04078

Sigma-Aldrich

Hydrogen peroxide–Urea adduct

powder, 15-17% active oxygen basis

Synonym(s):

Carbamide Per hydrate, Carbamide peroxide, Percarbamide, Urea hydrogen peroxide

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About This Item

Linear Formula:
CO(NH2)2 · H2O2
CAS Number:
Molecular Weight:
94.07
Beilstein:
3680414
EC Number:
MDL number:
UNSPSC Code:
12352111
PubChem Substance ID:
NACRES:
NA.22

vapor pressure

23.3 mmHg ( 30 °C)

Quality Level

form

powder

composition

active oxygen, 15-17%

reaction suitability

reagent type: oxidant

mp

85-90 °C (dec.)
90-93 °C (lit.)

functional group

amine

SMILES string

OO.NC(N)=O

InChI

1S/CH4N2O.H2O2/c2-1(3)4;1-2/h(H4,2,3,4);1-2H

InChI key

AQLJVWUFPCUVLO-UHFFFAOYSA-N

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General description

Hydrogen peroxide–Urea adduct is a compound composed of hydrogen peroxide (H2O2) and urea (CO(NH2)2) in equal amount. UHP, also known as carbamide peroxide, is manufactured industrially as a solid source of hydrogen peroxide for bleaching, disinfection, and oxidation reactions.

Application

Hydrogen peroxide–Urea adduct is used as an oxidizing agent.
Reactant which undergoes solid-state decomposition as a source of peroxide

Reactant used as an oxidant

Features and Benefits

Hydrogen peroxide–Urea (HPU) adduct is

  • Inexpensive
  • Commercially available
  • Stable solid.

Pictograms

Flame over circleCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Ox. Sol. 3 - Skin Irrit. 2

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Small-Scale Detonation of Industrial Urea-Hydrogen Peroxide (UHP )
Halleux F, et al.
Propellants, Explosives, Pyrotechnics, 47(2), e202100250-e202100250 (2022)
Highly efficient epoxidation of propylene to propylene oxide over TS-1 using urea+ hydrogen peroxide as oxidizing agent
Cheng W, et al.
Chinese Journal of Catalysis, 255(2) , 343-346 (2008)
N. O. Mahmoodi, et al.,
Synthetic Communications, 40, 3181-3185 (2010)
Solvent, metal and halogen-free synthesis of sulfoxides by using a recoverable heterogeneous urea-hydrogen peroxide silica-based oxidative catalytic system
Azizi M, et al.
Catalysis Communications, 100, 62-65 (2017)
T. Michel, et al.,
J. Mol. Catal. A: Chem., 340, 9-14 (2011)

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