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EC number: 947-377-6
CAS number: -
The test item melted to a slightly
yellow sticky mass between 110.1 and 120.7°C . Heating was performed up
to 140 °C and the test item was more transparent.
measurements showed only an endothermic increase in the heat flow at
359.53 °C. After the test the crucible was visually unchanged, the
crucible was opened and a very small amount of whitely to yellow
discolored residue was visible. However, no melting point/range can be
determined using this method.
the determination of Melting Point was conducted using the Capillary
122.1 °C (395.3 K)
127.0 °C (400.2 K)
122.2 °C (395.4 K)
127.3 °C (400.5 K)
Observations Melting Point with the
Instantly together shrivelled
Shrivel of the test item at 99 °C may be considered as a moisture, because the test item was not dried before determination or as a sign of decomposition of the substance.
The yellowish discolouring at 119 °C may be considered as a sign of decomposition and it might be a reaction of the test item because of the moisture as well.
Started to melt
The substance is not flowable at these temperatures.
Not yet together flowed-
Supposed end of melting process
The test item had flowed together at 185 °C only, which may be due to the viscous character of the test item.
Further heating for information purpose, boiling in capillary was visible
After cooling down the test item
solidified as brown mass.
range: 122.2 °C to 127.2 °C (395.4 K to 400.4 K)
(mean of two independent determinations.
deviation: 0.07 (begin); 0.21 (end)
Estimated accuracy: ±
We noted potential degradation of the
substance starting from 99.1 °C.
The“difference between duplicate
determinations” was 0.3K (< 0.5K). Then the validity criterion was met.
"difference between begin and end of melting process" was 5.0K (>0.5K).
Then , the validity criterion to define a melting point was not met and
a melting range was stated. As
the test item is a UVCB substance, this is considered as normal.
study was conducted under GLP according to EU Method A.1 and OECD 102 to
determine the melting point /range of the substance.
Capillary pre-test and DSC measurements were
performed to determine the method to be used to determine the melting
point/range of the substance.
Finally two independant determinations were
conducted using the capillary method and the mean values were used to
determine the melting range of the substance.
The melting range was determined as 122.2°C
to 127.2 °C (395.4 K to 400.4 K) with potential degradation of the
substance starting from about 99.1 °C
We note that the test item was flowable only
at 185 °C, which can be due to the viscosity of the substance.
A fully reliable GLP experimental study,
conducted according to a recognized OECD/EC guidelines using capillary
method, is available.
It is considered as a key study. The result
is retained as key data.
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