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EC number: 206-031-8 | CAS number: 292-64-8
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:
- 2021-04-15 - 2021-04-16
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- European Commission Regulation (EC) No. 440/2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Boiling pt.:
- 151.2 °C
- Atm. press.:
- ca. 1 013.25 hPa
- Decomposition:
- no
- Conclusions:
- The test item had a boiling point at atmospheric pressure (1013.3 hPa) of 151.2 °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 (DSC 25 -500 °C). The test item and the reference were heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles were used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released was measured and recorded. The test item had a boiling point at atmospheric pressure of 151.2 °C.
Reference
Two DSC measurements in aluminium crucibles with a hole showed an endothermal effect in the
temperature range of 110 – 170 °C. No further endothermal or exothermal effects were observed up to the final temperature (500 °C). The mass loss after the DSC measurements amounted to 100 %.
Table 1: Boiling Point (DSC measurement).
Ident No. | Test item /mg | Starting temperature / °C | Final test temperature / °C | Temperature range (boiling) / °C | Onset / °C | Crucible | Observations after the measurement |
39516 | 11.45 | 25 | 500 | 110-170 | 151.0 | Aluminium with a hole | Mass loss: 100 % |
39517 | 12.86 | 25 | 500 | 110-170
| 151.30 | Aluminium with a hole | Mass loss: 100 % |
The test item had a mean boiling point at atmospheric pressure (1013.3 hPa) of 151.2 °C.
Description of key information
The test item had a boiling point at atmospheric pressure (1013.3 hPa) of 151.2 °C (reference 4.3-1).
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 151.2
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 (DSC 25 -500 °C). The test item and the reference were heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles were used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released was measured and recorded. The test item had a boiling point at atmospheric pressure of 151.2 °C.
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