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EC number: 252-044-7
CAS number: 34455-00-0
During heating in Experiment 1, an endothermic peak between 225 °C and
325 °C was observed. In Experiment 2, a closed sample container was
applied to investigate whether the peak between 225 °C and 325 °C could
be related to boiling. An exothermic peak followed by an endothermic
peak between 225 °C and 350 °C was observed. After Experiments 1 and 2,
a small amount of black residue remained in the sample container. Based
on visual observations, the endothermic effects were most likely due to
reaction and/or decomposition of the test item.
Experiments 3 and 4 were performed to investigate reaction and /or
decomposition of the test item. Experiment 3 was stopped at 315 °C and
Experiment 4 was stopped at 300 °C. After Experiment 3 it was observed
that the test item had evaporated from the sample container. Therefore
no conclusion on boiling point could be drawn from this experiment.
After experiment 4, an off white/yellowish molten residue remained in
the sample container. It demonstrated that reaction and/or decomposition
of the test item was the reason for the endothermic effect.
The boiling point of FBSEE diol was tested using differential scanning
calorimetry (DSC). Boiling of the test substance was not observed below
200 °C (when decomposition started). Based on this, the test substance
has no boiling temperature. The study was conducted in accordance with
EU Method A.2 and was GLP compliant; therefore the study is considered
reliable without restrictions.
The boiling point of FBSEE diol is 286.8 °C according to a method
similar to ASTM D1120 -94. Limited details are available with the
report; therefore, the results are considered reliable with restriction.
Due to decomposition starting at 200 °C, FBSEE diol has no boiling
temperature (EU Method A.2).
In the key study, the boiling point of FBSEE diol was tested using
differential scanning calorimetry (DSC). The study was conducted in
accordance with EU Method A.2 and was GLP compliant; therfore the study
is considered reliable without restrictions. In a supporting study, the
boiling point of FBSEE diol was determined as 286.8 °C according to a
method similar to ASTM D1120-94. The results are considered reliable
with restrictions; however, because the boiling point was extrapolated
from temperatures below 200 °C, the result is not considered further.
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