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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Boiling point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
5.8.2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
> 240 °C
Atm. press.:
99 kPa
Decomposition:
yes
Decomp. temp.:
> 240 °C
Conclusions:
The water evaporation was observed between start temperature and 240°C, after that the decomposition of the test substance started. Any peaks correspond to the melting or boiling of the test substance were not observed to the temperature at which the thermal decomposition started.
Executive summary:

Boiling temperature of the testsubstance Reactive Orange 5 was investigated.

The Differential Scanning Calorimetry method was used

The procedures used in the study were in accordance with: 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

Decomposition of the test substance was observed above 240°C, i.e. 513K. Boiling of the test substance was not observed below the temperature at which decomposition started.

Boiling temperature of the test substance Reactive Orange 5 could not be determined because of thermal degradation of the test substance.

Description of key information

The procedures used in the study were in accordance with: 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.

Only one study is available.

GLP study.

Klimish score 1.

Key value for chemical safety assessment

Additional information

Decomposition of the test substance was observed above 240°C, i.e. 513K. Boiling of the test substance was not observed below the temperature at which decomposition started.