Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
08 May 2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
- Batch: 8191-34
- Purity: 97.8% (expressed as primary amine, % of total)
Key result
Decomposition:
yes
Decomp. temp.:
>= 148 °C
Remarks on result:
other: Atmospheric pressure was not reported; ambient conditions are anticipated.

The DSC curves showed a small exothermic effect (onset at 148 - 150 °C) probably caused by a reaction or decomposition; the substance changed from clear colourless to light yellow.

Under further heating a sharp endothermic peak (onset at 260 - 270 °C) was observed, probably caused by evaporation of the substance. The extrapolated onset temperature (280 - 282 °C) could be concluded to be the boiling temperature; however as discoloration of the substance had already occurred at a lower temperature, this should be regarded as the boiling temperature of the reacted and/or decomposed substance.

A further significant exothermic reaction occurred immediately after the endothermic reaction indicating further reaction and / or decomposition which is confirmed by a loss of sample weight (85 - 98%) and a further coloration (to brown).

Conclusions:
The test substance starts to decompose at 148 °C under ambient conditions.

Description of key information

In a GLP study according to test methods EC A.2 and OECD 103 (differential scanning calorimetry), the substance was determined to decompose at and above 148°C (Van der Baan-Treur, 2003).

Key value for chemical safety assessment

Additional information

The substance was concluded to decompose before its boiling temperature.