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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
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 decomposes before boiling
Cross-reference
Reason / purpose for cross-reference:
data waiving: supporting information
Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
May 9, 1990
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1981
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
1984
Deviations:
no
GLP compliance:
yes
Type of method:
other: capillary tube in a liquid bath
Key result
Decomposition:
yes
Decomp. temp.:
< 250 °C
Remarks on result:
other: No melting point.

- Preliminary determination: It was found that the test substance does not melt below 250°C

- Main study: During the heating process, no melting of the test substance was observed. The test substance became somewhat wettish and the colour of the test substance changed gradually to light-brown. After cooling, the light-brown colour remained. Therefore it was concluded that the test substance decomposes before melting. Start of decomposition is at temperatures below 250°C.

Conclusions:
The substance has no melting temperature. The substance decomposes before melting. Decomposition started at temperatures below 250°C.
Executive summary:

Using the capillary/liquid bath method, decomposition started at temperatures below 250°C, before melting. It was therefore concluded that the substance has no melting temperature. The study was performed in accordance with EC A.1 and OECD 102 guidelines and in compliance with GLP.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion