Registration Dossier
Registration Dossier
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EC number: 237-001-2 | CAS number: 13573-13-2
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 November 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- In-house study
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Differential scanning calorimetry was used to assess melting point. The system was checked with a certified reference sample, BaCO3, for melting point accuracy and it is within specification.
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- 767.4 °C
- Remarks on result:
- other: Average of 3 replicates
- Conclusions:
- The test item had a melting point of 767.4 +/- 0.4.
- Executive summary:
Knäbbeler-Buß (2017) is not GLP-compliant but used an appropriate method in order to determine the melting point of the test item (differential scanning calorimetry) and is acceptable with restrictions (Klimisch 2). The test item was determined to have a melting point of 767.4 +/- 0.4, based on the average of three measurements.
Reference
The DSC traces show additional features with onsets at 557.3 °C ± 3.4 °C, 650.8 °C ± 0.4 °C, and 922.1 °C ± 0.4 °C.
Description of key information
The test item had a melting point of 767.4 +/- 0.4 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 767.4 °C
Additional information
Johnson Matthey (2017) is not GLP-compliant but used an appropriate method in order to determine the melting point of the test item (differential scanning calorimetry) and is acceptable with restrictions (Klimisch 2). The test item was determined to have a melting point of 767.4 +/- 0.4 °C, based on the average of three measurements.
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