Registration Dossier
Registration Dossier
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EC number: 471-510-2 | 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
- Study period:
- 29.08.2006-12.10.2006
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- method according to Siwoloboff
- Key result
- Boiling pt.:
- 342.7 °C
- Atm. press.:
- ca. 101.325 kPa
- Decomposition:
- no
- Conclusions:
- The boiling point of the test item at atmospheric pressure (101.325 kPa) is 342.7 °C.
- Executive summary:
In the preliminary test, the colourless melt of the test item became yellowish at about 280°C. At 358°C a stream of air bubbles was visible. While increasing the temperature in the preliminary test, a darkening of the test item started changing at about 280°C from colourless to lightly yellowish and was darkened at 358°C. To confirm the results obtained in the preliminary test, the determination of the boiling point was performed threefold, heating quickly up ti 340°C and afterwards slowly using a heating rate of 1 K/min. Starting from a temperature of 310°C the colour of the sample changed and darkening of the test item was observed. Due the darkening of the test item during the heating phase the determination of the boiling point was ambiguous. A decomposition of the test item is possibly occurring. The boiling point defined with a current stream o bubbles evolving from the capillary was observed at a heating temperature of 342.6°C, 341.7°C and 341.4°C. The boiling point (mean value) was determined to be 615.8K (342.7°C).
Reference
Description of key information
The boiling point (mean value) was determined to be 615.8K (342.7°C).
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 342.7 °C
Additional information
In the preliminary test, the colourless melt of the test item became yellowish at about 280°C. At 358°C a stream of air bubbles was visible. While increasing the temperature in the preliminary test, a darkening of the test item started changing at about 280°C from colourless to lightly yellowish and was darkened at 358°C. To confirm the results obtained in the preliminary test, the determination of the boiling point was performed threefold, heating quickly up ti 340°C and afterwards slowly using a heating rate of 1 K/min. Starting from a temperature of 310°C the colour of the sample changed and darkening of the test item was observed. Due the darkening of the test item during the heating phase the determination of the boiling point was ambiguous. A decomposition of the test item is possibly occurring. The boiling point defined with a current stream o bubbles evolving from the capillary was observed at a heating temperature of 342.6°C, 341.7°C and 341.4°C. The boiling point (mean value) was determined to be 615.8K (342.7°C).
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