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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
28th - 30th November 1994
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
Commission Directive 92/69/EEC
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
distillation method
Key result
Atm. press.:
>= 102.5 - <= 102.96 kPa
Decomposition:
yes
Decomp. temp.:
>= 190 °C

In the first test, the upper part of the sample became a yellow/brown solid and the bottom part a brown/black liquid at 528 K (255 °C). In the second the sample became brown/black and half liquified, whilst emitting white fumes at 463 K (190 °C).

Due to the nature of the test item it was difficult to keep it contained to the sample flask without expanding into the condenser and the rest of the apparatus during heating. This also caused problems in determining the actual decomposition temperature as the sample temperature thermometer could not be guaranteed to be below the level of the test sample. Therefore the decomposition temperature has been taken as the lowest temperature that decomposition was observed in either of the two determinations.

Conclusions:
The test item decomposes on heating, starting at 190 °C.
Executive summary:

The boiling point of the test item was determined using the distillation method according to EU Method A.8. The test item was found to decompose before boiling, starting at 190 °C.

Description of key information

The susbtance decomposes before boiling.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
190 °C

Additional information

The boiling point of the test item was determined using the distillation method according to EU Method A.8. The test item was found to decompose before boiling, starting at 190 °C.