Registration Dossier
Registration Dossier
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EC number: 306-005-7 | CAS number: 95465-90-0
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Non-GLP, information from a review article, acceptable with restrictions
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Kinetics and mechanisms of the gas-phase reactions of the hydroxyl radical with organic compounds under atmospheric conditions.
- Author:
- Atkinson R
- Year:
- 1 985
- Bibliographic source:
- Chem. Rev. 85, 69-201
Materials and methods
- Principles of method if other than guideline:
- Measured data from author and other investigators were quality assessed and then used to develop rate constants for different chemicals. The author applied a least squares analysis of degradation rate constants for organic chemicals by hydroxyl radicals developed by other investigators.
- GLP compliance:
- not specified
- Remarks:
- No data reported
Test material
- Reference substance name:
- Butene
- EC Number:
- 246-689-3
- EC Name:
- Butene
- Cas Number:
- 25167-67-3
- Molecular formula:
- C4H8
- IUPAC Name:
- but-1-ene
- Reference substance name:
- But-1-ene
- EC Number:
- 203-449-2
- EC Name:
- But-1-ene
- Cas Number:
- 106-98-9
- IUPAC Name:
- but-1-ene
- Details on test material:
- No data reported
Constituent 1
Constituent 2
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
No data reported
Study design
- Estimation method (if used):
- No data reported
- Light source:
- other: No data reported
- Details on light source:
- No data reported
- Details on test conditions:
- No data reported
Results and discussion
- Preliminary study:
- No data reported
- Test performance:
- No data reported
Dissipation half-life of parent compound
- DT50:
- 0.5 d
- Test condition:
- No further details
- Results with reference substance:
- No data reported
Any other information on results incl. tables
Based on a calculated rate constant of 3.14E-11 cm3molecule-1sec-1, and a hydroxyl radical concentration of 5E5 molecule.cm-3
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Remarks:
- Review article
- Conclusions:
- The half-life of but-1-ene is 0.5 days
- Executive summary:
The half-life of but-1-ene is 0.5days. Measured data from author and other investigators were quality assessed and then used to develop rate constants for different chemicals. Therefore, this value represents a valid rate constant for but-1-ene based on all valid studies at the time of publication.
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