Registration Dossier
Registration Dossier
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EC number: 442-450-4 | CAS number: -
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:
- 02 to 03-Apr-2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- The Swiss GLP Monitoring Authorities
- Type of method:
- differential scanning calorimetry
- Boiling pt.:
- 355.1 °C
- Atm. press.:
- 987 kPa
Reference
Results
In the DSC-curve of the preliminary test (heating rate of 20 K/min from 25 °C to 400 °C) a first endothermic heat effect (melting, refer to study 841229) was observed at approx. 130 °C. A second endothermic heat effect was detected at about 360 °C. After the experiment, the sample had lost approx. 40 % of its mass and a brown solid melt remained.
In order to determine the boling point more precisely, further DSC-runs were recorded between 200 °C and 430 °C with a heating rate of 10 K/min. During both these runs, the boiling point of the substance was determined to be 355.1 °C. During these runs, the samples each lost 49% and 48% of their mass. After the measurement the sample was coloured brown.
The atmospheric pressure during the measurements was 98.7 kPa.
In conclusion, the boiling point of the test material was determined to be 355.1 °C (628.3 K).
Table: Results of the individual measurements
Test |
Temperature range (°C) |
Heating rate (K/min) |
Temperature (°C) |
Temperature (K) |
Preliminary test |
25 - 400 |
20 |
About 360 |
633.2 |
1stmain study |
200 - 430 |
10 |
355.1 |
628.3 |
2ndmain study |
200 - 430 |
10 |
355.1 |
628.3 |
Mean of melting point: Standard deviation (+/-) |
355.1 0.0 |
628.3 0.0 |
||
The boiling point was calculated from the "onset point" of the endothermic peaks. The mean boiling point was calculated from the values in bold.
Description of key information
355.1 °C at 987 hPa (OECD 103, differential scanning calorimetry)
Key value for chemical safety assessment
Additional information
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