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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 203-564-8 | CAS number: 108-24-7
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Scientifically acceptable calculation.
Data source
Reference
- Reference Type:
- other: EPIWIN calculation
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
- Principles of method if other than guideline:
- Calculation SRC AOP v1.92
- GLP compliance:
- no
Test material
- Reference substance name:
- Acetic anhydride
- EC Number:
- 203-564-8
- EC Name:
- Acetic anhydride
- Cas Number:
- 108-24-7
- Molecular formula:
- C4H6O3
- IUPAC Name:
- acetyl acetate
- Details on test material:
- - Name of test material (as cited in study report): Acetic acid, anhydride
Constituent 1
Study design
- Estimation method (if used):
- PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 500000 molecules/cm3
- Degradation rate constant: 0.0843E-12 cm3/molecules*s
- Computer programme: SRC AOP v1.92
- Other: assuming a 24-hour day
Results and discussion
Dissipation half-life of parent compound
- DT50:
- 190.3 d
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.
