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EC number: 208-577-2 | CAS number: 533-75-5
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:
- 24 October 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Boiling pt.:
- 243.4 °C
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- no
- Conclusions:
- A boiling point of 243.4 °C (at 1013 hPa) was determined for the test substance according to EU Method A.2
Reference
Results
In the temperature range of 50 - 70 °C an endothermic effect (melting), was observed. Between approx. 160 - 270 °C a second endothermic effect (boiling) could be detected.
Table 1: Results of the DSC-measurements
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Atmospheric pressure / hPa |
PN12079 |
15.78 |
52.32 243.00 |
50 - 70 (endo) 170 - 270 (endo) |
15.72 |
1001.1 |
PN12080 |
16.77 |
51.65 242.70 |
50 - 70 (endo) 160 - 260 (endo) |
16.77 |
1001.1 |
During the heating phase an endothermic effect was observed in the temperature range of 50 - 70 °C, which can be assigned to the melting of the test item.
The test item showed a second endothermic signal in the temperature range of approx. 160 - 270 °C that can be assigned to the boiling of the test item.
For the correction of the boiling temperature to standard pressure the test item was assigned to chemical group 2 (e.g. Hydrocarbons). A correction value φ = 5.05 was used for the temperature of 240 - 250 °C.
The lowest measured onset temperature is corrected to the standard pressure to be 243.23 °C and the highest onset temperature to be 243.53 °C. As the corrected onset temperatures in both tests deviate less than 0.5 K from their mean value of 243.38 °C, the test item has a boiling point of 243.4 °C.
No further thermal effects were observed up to the maximum test temperature of 500 °C.
Final Results
The test item has a boiling point of 243.4 °C corrected to normal atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995).
Description of key information
Boiling point: 243.4 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 243.4 °C
Additional information
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