Registration Dossier
Registration Dossier
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EC number: 271-637-1 | CAS number: 68603-10-1
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
Melting point 32 to 36 °C (305 to 309 K), OECD 102 and EU Method A.1, Fox (2015a)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 32 °C
Additional information
The melting point of the test material was investigated under GLP conditions and in accordance with the standardised guidelines OECD 102 and EU Method A.1 using the modified liquid bath method. All methodology and results were reported in full. The study was therefore assigned a reliability score of 1 in accordance with the principles for assessing data quality as described by Klimisch et al. (1997).
This method was selected due the physical nature of the test material; the use of a capillary tube would have made it difficult to observe the melting phase. An aliquot of test material was transferred into a small glass tube and a thermometer attached. The tube and thermometer were placed into a larger glass vessel containing silicone fluid; these had previously been cooled in a fridge (approximately 4 °C) overnight. Observations and temperatures were recorded as the test material was heated. The procedure was carried out in duplicate.
Under the conditions of the study, the melting point of the test material was determined to be within the range 32 to 36 °C (305 to 309 K), an average from two determinations.
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