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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25. 1. 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Council Regulation (EC) No.440/2008, Published in O.J. L 142, 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
Adopted July 27, 1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Decomposition:
yes
Decomp. temp.:
> 210 °C
Remarks on result:
other:
Remarks:
The water evaporation was observed between 40°C and 205°C
Conclusions:
The water evaporation was observed between 40°C and 205°C. The thermal decomposition of the test substance started at the temperature 210°C. Any peaks correspond to the melting or boiling of the test substance was not observed to the temperature at whitch the thermal decomposition started.Melting temperature and boiling temperature of the test substance, Direct Brown 103, could not be determined because of thermal decomposition of the test substance.
Executive summary:

The melting and boiling temperature of the test substance, Direct Brown 103 was investigated. The Differential Scanning Calorimetry method was used.

The procedures used in the study were in accordance with:

·        Method A.1. Melting/Freezing temperature, Council Regulation (EC) No.440/2008, Published in O.J. L 142, 2008

·        OECD Test Guideline No.102, Melting Point/Melting Range, Adopted July 27, 1995

·        Method A.2 – Boiling Temperature (1.6.6.2 Differential scanning calorimetry), Council Regulation (EC) No.440/2008, Published in O.J. L 142, 2008

·        OECD Test Guideline No 103, Boiling Point, Adopted July 27, 1995

The water evaporation was observed between 40°C and 205°C. The thermal decomposition of the test substance started at the temperature 210°C. Any peaks correspond to the melting or boiling of the test substance was not observed to the temperature at which the thermal decomposition started.

Melting temperature and boiling temperature of the test substance, Direct Brown 103, could not be determined because of thermal decomposition of the test substance.

Description of key information

Melting temperature and boiling temperatureof the test substance, Direct Brown 103, could not be determined because of thermal decomposition of the test substance.

The water evaporation was observed between 40°C and 205°C. The thermal decomposition of the test substance started at the temperature 210°C. Any peaks correspond to the melting or boiling of the test substance was not observed to the temperature at which the thermal decomposition started.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
210 °C

Additional information

(temperature of decomposition)