Registration Dossier
Registration Dossier
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EC number: 264-150-0 | CAS number: 63449-39-8
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Estimated data based on calculations.
Data source
Reference
- Reference Type:
- publication
- Title:
- Environmental Risk Evaluation Report: Long-Chain Chlorinated Paraffins.
- Author:
- UK Environment Agency
- Year:
- 2 009
Materials and methods
- Principles of method if other than guideline:
- calculated (Syracuse Research Corporation AOP (version 1.86 based on Atkinson)
- GLP compliance:
- no
Test material
- Reference substance name:
- Paraffin waxes and Hydrocarbon waxes, chloro
- EC Number:
- 264-150-0
- EC Name:
- Paraffin waxes and Hydrocarbon waxes, chloro
- Cas Number:
- 63449-39-8
- Molecular formula:
- C18H33Cl5 C18H30Cl8 C20H36Cl6 C20H33Cl9 C25H45Cl7 C25H42Cl10 C25H29C23 C30H53Cl9 C30H49Cl13 C30H35Cl27
- IUPAC Name:
- Paraffin waxes and Hydrocarbon waxes (C18 and longer), chloro
- Details on test material:
- C20-30, 70.8-71.3% Cl (solid)
Constituent 1
Study design
- Estimation method (if used):
- Model
- Light source:
- sunlight
- Details on light source:
- sunlight; model data
- Details on test conditions:
- hydroxyl radical concentration of 5x10E5 molecule/cm3
- Reference substance:
- no
Results and discussion
- Preliminary study:
- Not applicable
- Test performance:
- Not applicable
Dissipation half-life of parent compoundopen allclose all
- DT50:
- 112 h
- Test condition:
- C25 (71.3% Cl wt); hydroxyl radical concentration of 5x10E5 molecule/cm3
- DT50:
- 69.9 h
- Test condition:
- C30 (70.8% Cl wt); hydroxyl radical concentration of 5x10E5 molecule/cm3
- Transformation products:
- not specified
- Results with reference substance:
- No data
Any other information on results incl. tables
Estimated atmospheric half-lives are based are based on atmospheric hydroxyl radical concentration of 5x105 molecule/cm3.
Formula |
Chlorine Content (% wt. Cl) |
kOH (cm^3/molecule s) |
Atmospheric half-life (hours) |
C25H29Cl23 |
71.3 |
3.43 x 10-12 |
112 |
C30H35Cl27 |
70.8 |
5.51 x 10-12 |
69.9 |
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- Estimated atmospheric halves in the range of 70-112 hrs for >70% Cl (wt.) LCCP components.
- Executive summary:
Estimated atmospheric halves in the range of 70-112 hrs for >70% Cl (wt.) LCCP components.
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