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Physical & Chemical properties

Melting point / freezing point

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Description of key information

In run 1, a small endotherm with a peak at -57.27°C was observed. In run 2, a small endotherm with a peak at -57.08°C was observed. The mean of the two scans was given as the melting/freezing point.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-57.27 °C

Additional information

The endpoint was determined in accordance with EU Method A.1 (Melting / Freezing Temperature) and OECD Guideline 102 (Melting point / Melting Range).

A sample of MK92K was sealed in a vented aluminium DSC pan and scanned against a reference sample (an empty aluminium pan) from -60°C to 400°C at a heating rate of 10°C/minute after being held isothermally at -60°C for 15 minutes. Following examination of the results of this scan, a second test was performed. A second sample was scanned using the same temperature program.