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EC number: 618-797-4
CAS number: 91893-72-0
The test item shows three endothermic
effects in the temperature ranges of 250 °C - 280 °C, 320 °C - 360 °C
and 380 °C - 450 °C in the DSC runs.
In view of the fact that the mass losses of
the samples were about 50% , none of the observed endothermic effect can
be assigned to boiling of the test item.
For verification of the results the test
item was additionally tested three times according to the capillary
method. In the three tests, the test item started to liquefy and changed
its colour to brown at a temperature of approx. 340 °C. At a temperature
of 350 °C, the test item was completely liquid and turned black. At a
temperature of 360 °C, the test item started to climb in the capillary.
At a temperature of 400 °C the test was ended. The measurement carried
out with the capillary method showed that none of the endothermic
effects observed in the DSC measurements can be assigned to a boiling
point of the test item. Due to this result, the test item has no boiling
The test item TA-1 has no boiling point up to its decomposition starting
at approx. 250 °C as determined by differential scanning calorimetry and
capillary method according to Regulation EC No. 440/2008 Method A.2.
and OECD Test Guideline 103 (1995).
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