Hydrogen Peroxide → HCID 178511804, compound
Reaction equation
[NH2:1][C@H:2]([C:9]([OH:11])=[O:10])[CH2:3][C:4]1[N:8]=[CH:7][NH:6][CH:5]=1.OO.[Ce:14].[N+]([O-])(O)=O>O>[NH2:1][C@H:2]([C:9]([OH:11])=[O:10])[CH2:3][C:4]1[N:8]=[CH:7][NH:6][CH:5]=1.[Ce:14]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 40 °C
Procedure
Into a 600 ml glass beaker containing a magnetic stir bar was introduced 500 ml of high purity (HP) water. A 4.287 gm quantity of L-histidine was dissolved in this volume and the solution was heated to about 40° C., forming an alkaline solution. A 10.0 gm quantity of Ce(NO3)3·6(H2O) was added, about pH 6. The molar ratio of L-histidine to cerium ion was 1.2. Then a 10 ml solution containing 1.20 gm of 50% H2O2 (0.75 molar ratio of H2O2 to cerium ion) was added slowly to the cerium and histidine solution mixture. The pH was further adjusted to about 3 by the addition of 1N HNO3, thereby forming a clear suspension. The reaction product was then heated to 40° C. for 1 hour. After cooling, the product dispersion was a clear yellow liquid that displayed a high degree of Tyndall scattering when illuminated with a low intensity LASER beam, indicating it contained well-dispersed colloidal particles. Particle size analysis by dynamic light scattering indicated a hydrodynamic diameter of 9.3 nm with a polydispersity of 0.327.
Workup
- customforming an alkaline solution
- customforming a clear suspension
- temperatureThe reaction product was then heated to 40° C. for 1 hour
- temperatureAfter cooling
- customilluminated with a low intensity LASER beam
- additioncontained well-dispersed colloidal particles
Sources & evidence
- ORD record
- ord-8d1eb6b114234924a047ea7116d673df
- Source dataset
- uspto-grants-2016_04
- Patent number
- US09308265B2
Reaction notes
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