Registration Dossier
Registration Dossier
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EC number: 204-427-5 | CAS number: 120-80-9
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:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Remarks:
- The study is well described in terms of both experimental conditions and results. It gives interesting information on oxidation of catechol.
Data source
Reference
- Reference Type:
- publication
- Title:
- Effect of polar substituents on autoxidation of phenols
- Author:
- Moussavi M
- Year:
- 1 979
- Bibliographic source:
- Water Research, 13, 1125-1128
Materials and methods
- Principles of method if other than guideline:
- No data
- GLP compliance:
- not specified
- Type of study / information:
- The autoxidation of phenolic compounds, including catechol, was studied in mild alkaline media of pH 7 to 9 at room temperature.
Test material
- Reference substance name:
- Pyrocatechol
- EC Number:
- 204-427-5
- EC Name:
- Pyrocatechol
- Cas Number:
- 120-80-9
- Molecular formula:
- C6H6O2
- IUPAC Name:
- pyrocatechol
- Details on test material:
- - Name of test material (as cited in study report): pyrocatechol
- Analytical purity: > 99%
No further data.
Constituent 1
Results and discussion
Any other information on results incl. tables
The kinetic constants
of the reaction of catechol with oxygen were presented in the following
table. These kinetics correspond to the autoxidation of the first -OH
group.
pH |
k (h-1) |
t1/2(h) |
7 |
1.55x 10-3 |
447 |
8 |
1.67 x 10-3 |
415 |
9 |
1.68 x 10-3 |
412 |
The autoxidation reaction followed first-order kinetics. No reaction was found to proceed a significant extent during the periods in which the experiment was conducted.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
