Registration Dossier
Registration Dossier
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EC number: 231-335-2 | CAS number: 7493-74-5
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:
- 13-Jul-2015 to 23-Feb-2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- 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.:
- >= 270 - <= 273 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A boiling point of 270 -273 °C (at 1013 hPa) was determined for the test substance according to E.U. Method A.2.
Reference
Results
Results of the DSC measurements
No. |
Sample weight [mg] |
Onset of Effect [°C] |
Range of Effect [°C] |
Weight loss [mg] |
Atmospheric pressure [hPa] |
PN9159 |
15.85 |
-82.86
1.11 272.14
|
-90 to -70 (endo) -50 to -30 (exo) 0 to 10 (endo) 210 – 310 (endo) 350 – 440 (exo) |
15.69 |
1004.8 |
PN9160 |
16.75 |
-83.12
1.07 269.33
|
-90 to -70 (endo) -50 to -30 (exo) 0 to 10 (endo) 180 – 310 (endo) 350 – 440 (exo) |
16.56 |
1004.8 |
The test item showed a third endothermic signal in the temperature range of approx. 180 – 310 °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. Esters). According to appendix 8.2 a correction value φ = 5.1 was used for the temperature of 260 – 280 °C.
The lowest measured onset temperature is corrected to the standard pressure to be 269.72 °C and the highest onset temperature to be 272.53 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 271.13 °C, the test item has a boiling range of 270 – 273 °C.
After this a small exothermic effect was observed in the temperature range of 350 – 440 °C.
Final Results
The test item has a boiling point of 270 - 273 °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: 270 - 273 °C at 1013 hPa (EU Method A.2., differential scanning calorimetry)
Key value for chemical safety assessment
Additional information
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