Registration Dossier
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EC number: 208-536-9 | CAS number: 532-40-1
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 10 Jan 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to other study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- adopted in 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- 135 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- yes
- Decomp. temp.:
- 135 °C
Reference
Results
Two DSC measurements with a heating rate of 10 K/min showed an
endothermal effect (melting) in the temperature range of 135 – 215 °C.
The onset temperature was derived from the intersection of the tangent
line with the highest slope of the endothermal peak with the baseline.
Table 1 – Melting point DSC measurement results
Test item [mg] |
Starting temperature [°C] |
Final temperature [°C] |
Temperature range (melting) [°C] |
Onset [°C] |
Observations after the measurement |
14.15 |
25 |
500 |
140 – 205 |
163.64 |
-- |
7.45 |
220 |
135 - 215 |
163.25 |
Test item was a melt of red/orange colour; mass loss 9% |
The test item melted under decomposition starting at 135 °C.
Description of key information
Substance melted under decomposition starting at 135 °C (OECD 102, DSC).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 135 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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