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EC number: 825-609-6
CAS number: 98458-83-4
DSC EXPERIMENT 1
-Endothermic peak between -50°C and 50°C with extrapolated onset
temperature of -0.31°C.
-Endothermic effect between 150°C and 325°C with extrapolated onset
temperature of 254.96°C.
-After the experiment it was observed that the test item was evaporated
from the sample container.
DSC EXPERIMENT 2
To investigate the peak between -50°C and 50°C a repeated heating cycle
(as well as a hermetic sealed sample pan to investigate the effect
between 150°C and 325°C) was applied. With the first heating the
extrapolated onset temperature was -0.33°C. The similar value indicated
that melting of the test item was the reason for the effect. During
cooling an exothermic peak was observed between -20°C and -40°C, due to
crystallization of the test item.
With the second heating an extrapolated onset temperature of 0.09°C was
obtained. The results confirmed that the endothermic effect was due to
melting of the test item.
The extrapolated onset temperature of the second effect was 305.02°C. As
can be seen the endothermic peak shifted to higher temperatures. It
demonstrated that evaporation of the test item was the reason for the
After the experiment it was observed that the test item was evaporated
from the sample container.
DSC EXPERIMENT 3
The temperature program was similar as the program of Experiment 1 and
similar results were obtained. Extrapolated onset temperatures: -0.68°C
The melting temperature was determined as the mean extrapolated
onset temperature of Experiment 1 (-0.31°C), Experiment 2 (-0.33°C) and
Experiment 3 (-0.68°C).
Differential Scanning Calorimetry (DSC) experiments were performed in a
GLP study according to EC A.1, OECD 102 and OPPTS 830.7200. The melting
temperature of the substance was determined in triplicate obtaining a
mean value of 0°C (at 1009 ± 2 hPa).
The melting temperature of the substance was determined to be 0°C.
Determined using Differential Scanning Calorimetry (DSC) in a GLP study
according to EC A.1, OECD 102 and OPPTS 830.7200.
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