Registration Dossier
Registration Dossier
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EC number: 204-112-2 | CAS number: 115-86-6
Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: Unrealistic test conditions (also assessed by OECD)
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 986
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- Thermogravimetric analysis followed by dynamic headspace GC/MS
- GLP compliance:
- no
- Type of study / information:
- Analysis of products produced from thermally stressed plastics - TPP from thermolysis of polymer powder
Test material
- Reference substance name:
- Triphenyl phosphate
- EC Number:
- 204-112-2
- EC Name:
- Triphenyl phosphate
- Cas Number:
- 115-86-6
- Molecular formula:
- C18H15O4P
- IUPAC Name:
- triphenyl phosphate
Constituent 1
- Specific details on test material used for the study:
- Plastics containing TPP
Results and discussion
Any other information on results incl. tables
Heating a commercially polycarbonate specimen as powder (extremely high surface) showed weight loss beginning at 420 °C, whereas a commercially polyphenylene specimen as powder showed weight loss beginning at 190 °C. Injection molding temperatures for polycarbonate polymers are between 249 to 315 °C.
GC/MS analysis of vapours resulting from heating the polycarbonat powder and the polyphenylene powder to 250 °C yielded weight loss of 1 % and 8 % resp. and weight fractions of 0.05 % TPP and 3.6 % TPP resp. refering to the loss in weight.
Applicant's summary and conclusion
- Conclusions:
- A method is described for determing TPP released from thermally stressed polymers. However, the test conditions are unrealistic compared to normal use conditions
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