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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

boiling point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is a solid which melts above 300°C
the study does not need to be conducted because the substance is a solid which decomposes before boiling
Justification for type of information:
In accordance with column 2 of REACH Annex VII, the boiling point study (required in section 7.3) does not need to be conducted if the melting point of a solid is above 300 °C. The substance's melting point is > 450 °C as determined in the Melting/Freezing Temperature test performed according to test guidelines.

Furthermore, in accordance with the test guideline "Method A2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008" the determination of boiling point is not required if the melting point is above 450 °C.

Also, a supporting study performed by A. Clearfield and J. Lehto (1988) indicates that the substance decomposes before melting at temperatures above 700 °C.
Reason / purpose for cross-reference:
data waiving: supporting information
 Thermal analysis (differential scanning calorimetry (DSC)):  Melting point > 450 °C at 1,013 hPa (OECD 102, EU Method A.1, GLP)
Melting / freezing point at 101 325 Pa:
450 °C

The melting point study determined that the substance does not melt at temperatures below 450 °C. Visually, the samples did not change during the study. In a supporting study by Clearfield and Lehto (1988) the substance has been found to decompose before melting at very high temperatures (above 700 °C).

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion