Registration Dossier
Registration Dossier
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EC number: 931-468-2 | CAS number: 1190625-94-5
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
Melting temperature -23.46 °C (250 K); OECD 102, EU Method A.1 and EPA OPPTS 830.7200
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -23.46 °C
Additional information
The melting point of the test material was investigated in accordance with the standardised guidelines OECD 102, EU Method A.1 and EPA OPPTS 830.7200 under GLP conditions using differential scanning calorimetry. The study was awarded a reliability score of 1 in accordance with the principles for assessing data quality set forth by Klimisch et al. (1997).
The DSC technique records the difference in heat flow of two crucibles, one filled with test material and the other left empty as reference, while these crucibles are subjected to a controlled temperature programme. The melting temperature of the test material is evaluated from the DSC curve as the extrapolated onset temperature of the endothermic melting peak.
From an initial temperature of 25 °C, the samples were cooled at a rate of -5 °C/minute to -90 °C. From this temperature, the samples were then heated at a rate of 20 °C/minute. The experiments were performed under a flow of nitrogen and at atmospheric pressure.
Under the conditions of this study the melting temperature was determined to be -23.46 °C (250 K).
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