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Physical & Chemical properties

Boiling point

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boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10-15 Sep 2008
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.2 (Boiling Temperature)
according to guideline
other: internal procedure VTA(S)31X93002.02 "Boiling temperature determination of solid and liquid substances by means of DSC"
GLP compliance:
Type of method:
differential scanning calorimetry
Boiling pt.:
>= 389 - <= 454 °C
Atm. press.:
1 009 mBar

In order to ensure proper interpretation of the endothermic effect in the DSC curve, additional TGA measurements were performed. In the DSC-measurement an endothermic effect was visible. This could be not a melting effect, because TGA showed a weight loss (furthermore, the test item was liquid at room temperature). An evaporation could be excluded, because a partial encapsulated AL-crucible was used. The TGA curve showed a weight loss of almost 100 % in a single step; this peak was characteristic for a boiling effect and not a decomposition. Altogether, the test item showed at 1009 hPa an area of boiling temperatures (as defined in the EC Guideline A.2) from 389 to 454 °C.

Description of key information

389-454 °C at 1009 hPa

Key value for chemical safety assessment

Additional information

The boiling point (boiling range) of the substance nonanedioic acid, bis(2 -octyldodecyl) ester (CAS 897626 -46 -9) is determined according to the EC Guideline A.2 (differential scanning calorimetry method).