Registration Dossier
Registration Dossier
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EC number: 641-136-6 | CAS number: 1160164-88-4
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
- Key result
- Melting / freezing pt.:
- 66.4 - 69.4 °C
- Remarks on result:
- other: A melting range was stated, not a melting point.
- Executive summary:
The study was conducted in accordance with the following guidelines: OECD Guideline for the Testing of Chemicals No. 102 dated 27. July 1995 "Melting Point / Melting Range" and EU-Method A.1, dated 31. May 2008, "Melting/Freezing Temperature".
The capillary method using an aluminium block was used. The determination was performed in duplicate. In both determinations a melting range was detected.
Melting range: 66.4 to 69.4 °C (339.6 to 342.6 K). These values were the means of two independent determinations.
Reference
Visual observations of both determination: Following a contraction in volume, the substance started to melt, forming first little drops, then a liquid with visible specks and smears. Disappearance of visible unmelted parts was recorded as the end of melting process.
Melting range: 66.4 to 69.4 °C (mean of two determinations)
Standard deviation: 0.14 °C ((begin); 0 °C (end)
Estimated accuracy: ± 0.2 °C
Values of the main study:
| Melting Point/range | Begin | End |
| First determination | 66.5 °C | 69.4 °C |
| Second determination | 66.3 °C | 69.4 °C |
Description of key information
The capillary method using an aluminium block was used. The determination was performed in duplicate. In both determinations a melting range was detected.
Melting range: 66.4 to 69.4 °C (339.6 to 342.6 K). These values were the means of two independent determinations.
Key value for chemical safety assessment
Additional information
A second determination of the melting point was performed according to OECD Guideline 102 (capillary method) without GLP. A melting range was stated as 62.9 to 68.8 °C at 1008 mbar.
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