Registration Dossier

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:
2015-08-10 to 2015-12-12
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
(May 30th 2008)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
(adopted on 27 July 1995)
Deviations:
no
GLP compliance:
no
Type of method:
other: thermogravimetry / differential scanning calorimetry
Decomposition:
yes
Decomp. temp.:
> 190 °C
Remarks on result:
not determinable

Results

TGA

In the TGA test, a sample of the test item was heated from 30 °C to 675 °C in an inert gas atmosphere (N2). Between 30 °C and 150 °C it lost 2.95 % of its weight, which can be mainly attributed to the evaporation of residual water.Above 189 °C (onset) the weight continuously decreased and reached a loss of approx. 95 % at 560 °C.

DSC

An endothermic signal was recorded over a temperature range of -29 °C - 8 °C. No additional phase transition could be observed up to 190 °C. This endothermic is possibly attributed to a solid-solid phase transformation, however, a melting of crystalline subcomponents cannot be completey excluded. The recorded discontinuities above 150°C indicate a beginning decomposition of the test item which corresponds to the increased weight loss (11.7%).

Conclusions:
There was no boiling point detected, decomposition started >190 °C.
Executive summary:

The boiling temperature of Amphopropionates C12 -18 (96.3% a.i.) was determined by thermogravimetry and differential scanning calorimetry according to OECD Test Guideline 103 (adopted on 27 July 1995) and EU test method A.2. There was no boiling point detected. Test item decomposition was observed above 190 °C.

Description of key information

no boiling point detected, decomposition >190°C (OECD TG 103 / EU methdo A.2; RL1; no GLP)

Key value for chemical safety assessment

Additional information

The boiling temperature of Amphopropionates C12 -18 (96.3% a.i.) was determined by thermogravimetry and differential scanning calorimetry according to OECD Test Guideline 103 (adopted on 27 July 1995) and EU test method A.2. There was no boiling point detected. Test item decomposition was observed above 190 °C.