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EC number: 611-044-0 | CAS number: 53784-84-2
From 100°C upwards the weight of the sample decreased significantly. At 244°C the sample weight had decreased by 25%. After the experiment, a charred residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.
DSC EXPERIMENT 1
A small endothermic peak between 75°C and 150°C was observed. The extrapolated onset temperature of the peak could not be determined due to the peak shape. Another endothermic effect was observed between 225°C and 275°C. After the experiment, a charred residue remained in the sample container.
DSC EXPERIMENT 2
To investigate the peak between 75°C and 150°C a repeated heating cycle was applied. With the first heating the extrapolated onset temperature of the endothermic peak between 75°C and 150°C could not be determined. During cooling no exothermic peaks could be observed. Therefore, it was concluded that the endothermic effect between 75°C and 150°C was not resulting from the melting of the test item. During the second heating, the endothermic effect between 225 and 275°C did not shift to a higher temperature. It demonstrated that reaction and/or decomposition of the test item was the reason for the endothermic effect. After the experiment, a charred residue remained in the sample container.
According to these observations, it was concluded that the test item has no melting and no boiling temperature.
The melting temperature was determined using differential scanning calorimetry in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200.
Reaction and/or decomposition started at 225°C. Melting of the test item was not observed below the temperature at which reaction and/or decomposition started. The substance has no melting temperature.
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