Registration Dossier
Registration Dossier
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EC number: 257-885-3 | CAS number: 52372-39-1
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:
- November 30, 2017 - December 01, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- > 280 °C
- Executive summary:
The test item had no boiling point under atmospheric condition.
Reference
Two DSC measurements with a heating rate of 10 K/min showed an endothermal effect (melting) in the temperature range of 220 – 280 °C. The onset temperature (seeTable1) was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline.
The first DSC measurement additionally showed an exothermal effect starting at 280°C. The results of the DSC measurements are summarized in Table 1.
Table1: Melting point (DSC measurements)
Ident No. |
Test item / mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (endo-thermal) / °C |
Onset (melting) / °C |
Crucible |
Observations after the measurement |
36713 |
9.36 |
25 |
500 |
220 –275 |
264.6 |
Aluminium with a hole |
Black residue Mass loss: 22% |
36718 |
9.07 |
25 |
272 |
220 – 272 |
262.2 |
Aluminium with a hole |
Test item was a dark melt Mass loss: 0% |
No endothermal effects were observed after the melting and before the exothermal effect. The DSC measurements showed no boiling after the melting effect and before the decomposition started. The test item had no boiling point under atmospheric conditions.
Description of key information
The test item had no boiling point under atmospheric condition.
Key value for chemical safety assessment
Additional information
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