Registration Dossier
Registration Dossier
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EC number: 608-148-3 | CAS number: 279246-65-0
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:
- 04.05-12.06.2006
- 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
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Boiling pt.:
- 346 °C
- Atm. press.:
- ca. 1 013.25 hPa
- Decomposition:
- no
- Conclusions:
- The boiling point of the test item at atmospheric pressure (1013.3 hPa) is 346 °C.
- Executive summary:
A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry. The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. The test item had a boiling point of 346 °C under atmospheric conditions.
Reference
Thermal Stability
The DSC measurement in a closed glass crucible showed an endothermic effect (melting) in the temperature range 35 - 60 °C and no exothermic effect until 400 °C.
Boiling Point / Boiling Range (DSC)
Three measurements in aluminium crucibles with a hole showed an endothermic effect after the melting in the temperature range 310 - 350 °C with an onset temperature of approximately 346 °C.
| Ident No. | Onset / °C | Temperature range / °C | Crucible |
| 23785 | 344.33 | 310 - 350 | Aluminium with a hole |
| 23788 | 345.82 | 310 - 350 | Aluminium with a hole |
| 23790 | 346.23 | 310 - 350 | Aluminium with a hole |
For the correction of the boiling point to standard atmospheric pressure (1013.3 hPa) the equation, table and graphs of H.B. Hass and R.F. Newton in "CRC Handbook of Chemistry and Physics, 74th ed. 1993 -1994", pages 15 -16 and 15 -17 were used. The corrected values are shown in the table below:
| Ident.no. | Onset / °C | Atmospheric pressure / hPa | (group 2) | delta-t / °C | Boiling point at 1013.3 hPa / °C |
| 23785 | 344.33 | 1010 | 5.249 | 0.162 | 344.49 |
| 23788 | 345.82 | 1010 | 5.252 | 0.163 | 345.98 |
| 23790 | 346.23 | 1010 | 5.252 | 0.163 | 346.39 |
Description of key information
The test item had a boiling point of 346 °C under atmospheric conditions.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 346 °C
Additional information
A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry. The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. The test item had a boiling point of 346 °C under atmospheric conditions.
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