Registration Dossier
Registration Dossier
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EC number: 947-908-1 | 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:
- From 05 to 06 March 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- The study was conducted according to an internationally recognised method, and under GLP. The test substance is adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Inspected on 4,5 and 6 July 2016/ Signed on 10 January 2017
- Type of method:
- differential scanning calorimetry
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- ca. 273.2 °C
- Conclusions:
- The decomposition of the substance is determined at 273.2°C. No boiling point can be determined.
- Executive summary:
The study was performed in order to determine the boiling point of test item according to OECD 103, resp. EU A.2, using the DSC method.
An exothermic peak was observed at 273.2°C (mean of 272.9 °C for the first determination and 273.4 °C for the second determination) corresponds to the degradation of the substance and a mass loss was observed on the TG curve.
An endothermic peak has been determined to be 372 °C (mean of 371.9 for the first determination and 372.0 °C for the second determination) and a mass loss was observed on the TG curve, showing that almost all the substance was evaporated (including potential degradation compounds) at the end of the study.
Reference
Results
All the raw data (calibration, pre-test and main tests) is in the experimental report.
Pre-study
The measurement was stopped at 440°C.
Temperatures corresponding to the detected peaks were used to create the following temperature program:
Step |
Initial temperature (°C) |
Final Temperature (°C) |
Heating rate (°C/min) |
Duration (min) |
Furnace atmosphere |
Rate* (mL/min) |
Liquid nitrogen cooling |
1 |
-120 |
450 |
10 |
57 |
He |
60 |
NO |
Test 1:
An exothermic peak was observed at 272.9 °C corresponds to the degradation of the substance and mass loss was observed on the TG curve.
An endothermic peak was observed at 371.9 °C and a mass loss is observed on the TG curve, showing that almost all the substance was evaporated (including potential degradation compounds) at the end of the study.
The crucible was visually checked after the determination: by opening the crucible, no test item left in the crucible.
Atmospheric pressure: 949.0 hPa.
A peak corresponding to a glass transition was observed during this determination.
Test 2:
An exothermic peak was observed at 273.4 °C corresponds to the degradation of the substance and mass loss was observed on the TG curve.
An endothermic peak was observed at 372.0 °C and a mass loss is observed on the TG curve, showing that all the substance was evaporated (including potential degradation compounds) at the end of the study.
The crucible was visually checked after the determination: by opening the crucible, no test item left in the crucible.
Atmospheric pressure: 949.0 hPa.
A peak corresponding to a glass transition was observed during this determination.
Conclusion
An exothermic peak was observed at 273.2°C (mean of 272.9 °C for the first determination and 273.4 °C for the second determination) corresponds to the degradation of the substance and a mass loss was observed on the TG curve.
An endothermic peak has been determined to be 372 °C (mean of 371.9 for the first determination and 372.0 °C for the second determination) and a mass loss was observed on the TG curve, showing that almost all the substance was evaporated (including potential degradation compounds) at the end of the study.
Description of key information
The decomposition of the substance is determined at 273.2°C. No boiling point can be determined.
Key value for chemical safety assessment
Additional information
A fully reliable experimental study, conducted according to OECD 102/ EU A1 guideline is available.
It is considered as a key study.
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