Registration Dossier
Registration Dossier
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EC number: 701-246-8 | CAS number: -
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Preliminary trial information with limited reporting: analytical methods and accuracy limits of these uncertain
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Measurement of MW distribution following exposure to UV lamp or sunlight
Test material
- Reference substance name:
- Nu-Film-17
- IUPAC Name:
- Nu-Film-17
- Reference substance name:
- Oligomerisation products of beta-pinene
- EC Number:
- 701-246-8
- Molecular formula:
- Variable (dimer = C20-H34)
- IUPAC Name:
- Oligomerisation products of beta-pinene
- Details on test material:
- Typical pinene oligomers content 96%
Constituent 1
Constituent 2
Study design
- Light source:
- other: UV lamp and sunlight
- Details on test conditions:
- 72h exposure to UV lamp or 24h exposure to sunlight
Results and discussion
- Preliminary study:
- UV lamp exposure:
0h - Mw 736. Tetramer/higher oligomer content 26%
72h - Mw 798. Tetramer/higher oligomer content 43%.
Sunlight exposure:
0h - Mn 373, Mw 15. Tetramer/higher oligomer content 30%
24h - Mn 392, Mw 783. Tetramer/higher oligomer content 43%.
Applicant's summary and conclusion
- Conclusions:
- Results give an indication of increased polymerisation leading to increased content of higher-order oligomers, but limited effect on Mn and Mw/Mn ratio make interpretation unclear.
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