Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
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:
- 2019-11-11 to 2020-02-28
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- - Batch No.: 2019002
- Purity: 98.39 %
- Appearance: White solid
- Storage conditions: ambient temperature (10–30 °C)
- Expiry date: 2020-10-21
TREATMENT OF TEST MATERIAL PRIOR TO TESTING
The sample was tested as received. No further preliminary treatment such as drying or milling was performed. - Key result
- Melting / freezing pt.:
- > 218 - < 220 °C
- Atm. press.:
- ca. 1 Bar
- Conclusions:
- The melting point of the test item is in the range of 218–220 °C.
- Executive summary:
In a GLP study conducted according to OECD 102 and EC A.1, the melting point was determined by DSC measurement. The melting range of the test item under atmospheric conditions was determined to be between 218 °C and 220 °C.
Reference
Results:
Two DSC measurements with a heating rate of 10 K/min showed an endothermal effect (melting) in the temperature range of 210–235 °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 measurements) | |||||||||
| Test run | Test item/mg | Starting temperature, °C | Final test temperature, °C | Temperature range (endothermal), °C | Onset melting, °C | Crucible | Observations after the measurement | ||
| 1 | 11.92 | 25 | 500 | 210–235 | 218.70 | Aluminium with a hole | Black residues | ||
| 2 | 11.19 | 25 | 260 | 210–235 | 219.80 | Aluminium with a hole | Test item was solidified melt | ||
Description of key information
The melting range of the test item under atmospheric conditions was determined to be between 218 and 220 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 218 °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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