Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
stability: thermal, sunlight, metals, other
Remarks:
Migrated from section 'Stability: thermal, sunlight, metals'
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP and Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014

Materials and methods

GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1

Results and discussion

For thermal stability study

Test substance thermally stable:
no
Sublimation:
no
Transformation products:
not measured

For study on stability to sunlight

Test substance stable to sunlight:
not determined

For study on stability to metals

Test substance stable to metals / metal ions:
not determined

Any other information on results incl. tables

An exothermic heat-flow was recorded starting at approximately 280 °C and ending at approximately 380°C under nitrogen atmosphere in a closed glass crucible. An exothermic heat-flow was recorded starting at approximately 280 °C and ending at approximately 380°C under Air atmosphere in a closed glass crucible. The energy of the decomposition was ca. 230 J/g. The thermograms of both tests (air / nitrogen atmosphere) are nearly identical. That shows that the decomposition is most probably not an oxidation reaction. Therefore the kind of atmosphere is not relevant for the decomposition of the test item.

The visual observations of the melting point showed that the test item undergoes thermal decomposition (Colour change to yellow) directly after the melting point. At approximately 245 °C a weak gas formation was observed. The resulting gas was enclosed in the melt.

The recorded NMR-Spectrum of a tempered sample (10 minutes at 248 °C) showed that 80 % of the test item molecules were still present. But 20 % of the substance had degraded.

Applicant's summary and conclusion

Conclusions:
The substance is not thermally stable at temperatures above the melting point.