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EC number: 226-195-4 | CAS number: 5324-84-5
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:
- 15 March 2018
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- Regulation (EC) 440/2008 of 30 May 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- Non-GLP study.
- Type of method:
- capillary method
- Remarks:
- Photocell detection
- Key result
- Melting / freezing pt.:
- > 300 °C
- Remarks on result:
- other: Mean Value
- Melting / freezing pt.:
- > 300 °C
- Remarks on result:
- other: Test 1
- Melting / freezing pt.:
- > 300 °C
- Remarks on result:
- other: Test 2
- Conclusions:
- The test item has a mean melting point of > 300 °C (> 573.15 K).
- Executive summary:
EU Method A.1. – The melting point/freezing point of the test item was determined using the capillary method. The procedure employed was designed to be compatible with Method A.1. Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Aliquots of test item were placed in capillary tubes fused at one end and subjected to heating at a rate of 10 °C/min from a temperature of 215 °C. Heating was continued to 300 °C. The test was performed twice.
The mean melting temperature of the test item was established as being > 300 °C.
Reference
Table 1: Test Item Melting Point
Test No: |
Melting Point (℃) |
1 |
> 300 |
2 |
> 300 |
Visual assessment following completion of a each test showed unmelted powder which changed from a slight off-white colour to a dark tan colour.
Description of key information
Melting Point: > 300 °C; EU Method A.1.; D. McSherry (2018)
Key value for chemical safety assessment
Additional information
EU Method A.1. – The melting point/freezing point of the test item was determined using the capillary method. The procedure employed was designed to be compatible with Method A.1. Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Aliquots of test item were placed in capillary tubes fused at one end and subjected to heating at a rate of 10 °C/min from a temperature of 215 °C. Heating was continued to 300 °C. The test was performed twice.
The mean melting temperature of the test item was established as being > 300 °C.
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