Registration Dossier
Registration Dossier
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EC number: 695-716-9 | CAS number: 1174931-74-8
Boiling point
Administrative data
Link to relevant study record(s)
Description of key information
substance decomposes before boiling >280⁰C, EU Method A.2, McLean 2012
Key value for chemical safety assessment
Additional information
The boiling point of the test substance was determined by differential scanning calorimetry according to EU Method A.2. A review of the thermograms that starting at 50⁰C were variable, but showed endothermic events starting at temperatures greater than 280⁰C. The event noted at approximately 150⁰C on those thermograms that start at 50⁰C was the previously determined melting point. One thermogram had an endothermic event that occurs between 200 and 220⁰C. This event only occurred once in several experiments, and was determined to be anomalous. Close review of the thermograms that start at 50⁰C did not detect any endothermic events occurring between the 150⁰C melting point and the high temperature event starting at >280⁰C. Therefore it was concluded that the compound was decomposing before it boils. The extrapolated onset temperature, 298.50 ºC, is the temperature at which decomposition occurs.
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