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EC number: 241-997-4 | CAS number: 18096-62-3
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:
- 21-Aug-2014
- 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/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.:
- 276.1 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A boiling point of value 276.1 °C (at 1013 hPa) was determined for the test substance according to E.U. Method A.2.
Reference
Results
In the thermograms of the two DSC runs (nos. PN7334 and PN7336) an endothermic effect (melting) was observed in the temperature range of 30 – 60 °C. Between 150 - 290 °C a second endothermic effect (boiling) could be detected.
Results of the DSC measurements
No. |
Sample weight (mg) |
Onset of effect (°C) |
Range of effect (°C) |
Weight loss (mg) |
Atmospheric pressure (hPa) |
Remark |
PN7334 |
13.22 |
36.39 275.42 |
30-60 (endo) 150-029 (endo) |
13.17 |
1005.5 |
Figure 1 |
PN7336 |
11.99 |
36.48 276.04 |
30-60 (endo) 150-029 (endo) |
11.92 |
1005.0 |
Figure 2 |
The test item showed a second distinct endothermic signal in the temperature range of 150 -290 °C that can be associated with 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 (eg. hydrocarbons). A correction value φ = 5.1 was applied for the temperature range from 260 - 290 °C.
The lowest measured onset temperature, corrected to standard pressure, was 275.78 °C. The highest onset temperature, corrected to standard pressure, was 276.42 °C. As the corrected onset temperatures in both tests deviate by less than 0.5 K from their mean value of 276.10 °C, the test item has a boiling point of 276.1 °C.
No further thermal effects were observed up to the test temperature of 500 °C.
Final Results
The test item has a boiling point of 276.1 °C at atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Directive EC40/2008 Method A.2., OECD Test Guideline 103 (1995), EPA OCSPP 830.7220 (1998).
Description of key information
Boiling point: 276.1 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 276.1 °C
Additional information
The boiling point has been corrected to normal pressure (1013.25 hPa) using the H.N. Hass and R.F. Newton equation.
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