Registration Dossier
Registration Dossier
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EC number: 231-765-0 | CAS number: 7722-84-1
Oxidation reduction potential
Administrative data
- Endpoint:
- oxidation reduction potential
- Type of information:
- other:
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The information is regarded as reliable with restrictions.
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- European Union Risk Assessment Report, CAS No 7722-84-1, EINECS No 231-765-0
- Author:
- European Commission
- Year:
- 2 003
- Bibliographic source:
- Joint Research Centre, European Chemicals Bureau, Institute for Health and Consumer Protection, 2nd Priority List, Vol 38
Materials and methods
Test material
- Reference substance name:
- Hydrogen peroxide
- EC Number:
- 231-765-0
- EC Name:
- Hydrogen peroxide
- Cas Number:
- 7722-84-1
- Molecular formula:
- H2O2
- IUPAC Name:
- hydrogen peroxide
1
Results and discussion
Applicant's summary and conclusion
- Executive summary:
Hydrogen peroxide is a strong oxidizer with high oxidation potential.
As an oxidizing agent:
H2O2 + 2 H+ + 2e- --> 2 H2O; Eo = + 1.763 V at pH 0
HO2- + H2O + 2e- --> 3 OH-; Eo = + 0.878 V at pH 14
As a reducing agent:
H2O2 --> O2 + 2 H+ + 2e-; Eo = - 0.66 V at pH 0
HO2- + OH- --> O2 + H2O + 2e-; Eo = + 0.08 V at pH 14
Systems with a redox potential Eo below - 1,80 V at pH 0 cannot be oxidised by hydrogen peroxide; systems with a redox potential Eo above -0.66 V at this pH cannot be reduced by hydrogen peroxide.
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