Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 906-627-4 | CAS number: -
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study cited in peer reviewed and generally accepted database.
Data source
Referenceopen allclose all
- Reference Type:
- secondary source
- Title:
- Kinetics and mechanisms of the gas-phase reactions of hydroxyl radical with organic compounds
- Author:
- Atkinson R
- Year:
- 1 989
- Bibliographic source:
- J Phys Chem Ref Data, Monograph 1: 135
- Reference Type:
- publication
- Title:
- A kinetics investigation of the gas-phase reactions of OH radicals with cyclic ketones and diones: mechanistlc insights.
- Author:
- Dagaut P et al.
- Year:
- 1 988
- Bibliographic source:
- J Phys Chem 92: 4375-4377.
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Measured, study was performed according to Wallington (1987). Wallington TJ, Kurylo MJ (1987). J Phys Chem, 91: 5050.
- GLP compliance:
- no
Test material
- Reference substance name:
- Cyclohexanone
- EC Number:
- 203-631-1
- EC Name:
- Cyclohexanone
- Cas Number:
- 108-94-1
- Molecular formula:
- C6H10O
- IUPAC Name:
- Cyclohexanone
Constituent 1
Study design
- Details on test conditions:
- Sensitiser (for indirect photolysis): OH
Sensitiser concentration: 0.5E6 molecule/cm³
Duration of test at given test condition
- Temp.:
- 25 °C
Results and discussion
Dissipation half-life of parent compound
- DT50:
- 2.5 d
- Transformation products:
- no
Any other information on results incl. tables
The rate constant by 25 °C = 6.39 (+/- 0.51)*10E-12 cm3/molecule*sec.
Rate constant (for indirect photolysis): = 0.00000000000639 cm³/(molecule*sec)
Degradation in % (for indirect photolysis): = 50 after 2.5 day(s)
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.
