Registration Dossier
Registration Dossier
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EC number: 204-617-8 | CAS number: 123-31-9
Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Effect of polar substituents on autoxidation of phenols
- Author:
- Moussavi M
- Year:
- 1 979
- Bibliographic source:
- Water Res 13, 1125 - 1128
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- GLP compliance:
- no
- Type of study / information:
- Abiotic oxidation in aqueous solution
Test material
- Reference substance name:
- Hydroquinone
- EC Number:
- 204-617-8
- EC Name:
- Hydroquinone
- Cas Number:
- 123-31-9
- Molecular formula:
- C6H6O2
- IUPAC Name:
- hydroquinone
- Details on test material:
- Purity: >99%
Constituent 1
Results and discussion
Any other information on results incl. tables
Kinetic constants of autooxidation reactions at 25°C:
pH |
k [h-1] |
DT50 [h] |
7.0 |
6.24*10E-3 |
111 |
8.0 |
1.68*10E-2 |
41 |
9.0 |
8.22*10E-1 |
0.84 |
Applicant's summary and conclusion
- Conclusions:
- Hydroquinone was shown to be rapidly oxidized in aqueous solution. The reaction rate is dependent on pH.
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