Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- method according to Siwoloboff
- Remarks:
- plus differential scanning calorimetry for confirmatory purposes
- Key result
- Atm. press.:
- 100 800 Pa
- Decomposition:
- yes
- Decomp. temp.:
- > 300 °C
- Remarks on result:
- other: Boiling point not determinable; test material decomposes at temperatures above approx. 300 °C without boiling
Reference
As the boiling tube was heated, gradual darkening was observed at elevated temperature, but no boiling below 360˚C. As it was difficult to ascertain the onset of this apparent decomposition, DSC was also employed to further investigate.
The DSC trace showed significant exotherms above approximately 300˚C, consistent with decomposition of the test substance (observed to be a black solid after testing). Slight deviation from the baseline at lower temperature (and some discoloration seen over the same temperature range during the Siwoloboff test) may have been attributable to minor components.
Description of key information
Decomposes above approximately 300ºC without boiling (OECD 103, EU A.2)
Key value for chemical safety assessment
Additional information
Boiling point at 100800 Pa: none; decomposes above approximately 300ºC without boiling
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