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EC number: 447-920-2
CAS number: 897393-42-9
The DSC curves showed a small exothermic effect (onset at 148 - 150 °C)
probably caused by a reaction or decomposition; the substance changed
from clear colourless to light yellow.
Under further heating a sharp endothermic peak (onset at 260 - 270 °C)
was observed, probably caused by evaporation of the substance. The
extrapolated onset temperature (280 - 282 °C) could be concluded to be
the boiling temperature; however as discoloration of the substance had
already occurred at a lower temperature, this should be regarded as the
boiling temperature of the reacted and/or decomposed substance.
A further significant exothermic reaction occurred immediately after the
endothermic reaction indicating further reaction and / or decomposition
which is confirmed by a loss of sample weight (85 - 98%) and a further
coloration (to brown).
In a GLP study according to test methods EC A.2 and OECD 103
(differential scanning calorimetry), the substance was determined to
decompose at and above 148°C (Van der Baan-Treur, 2003).
The substance was concluded to decompose before its boiling temperature.
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