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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15.-17.06.2020
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:
European Commission Regulation (EC) No. 440/2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
1995
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Decomposition:
no
Remarks on result:
not determinable
Remarks:
The test item had no boiling point up to 500 'C at atmospheric conditions.

Two DSC measurements in aluminium crucibles with a hole showed an endothermal effect after the


melting in the temperature range of 120 - 160 °C. The onset temperature (see Table) was derived


from the intersection of the tangent line with the highest slope of the endothermal peak with the


baseline.


 


Table 1: Boiling Point (DSC measurement).



























Ident No.



Test item /mg



Starting temperature / °C



Final test temperature / °C



Temperature range (boiling) / °C



Onset / °C



Crucible



Observations after the measurement



39099



8.68



25



500



-



-



Aluminium with a hole



No mass loss



 


The test item had no boiling point up to 500 °C at atmospheric conditions.


Conclusions:
The test item had no boiling point up to 500 °C at atmospheric conditions.
Executive summary:

A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry (DSC 25 -500 °C). The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded.The test item had no boiling point up to 500 °C at atmospheric conditions.

Description of key information

The test item had no boiling point up to 500 °C

Key value for chemical safety assessment

Additional information

A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry (DSC 25 - 500 °C). The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. The test item had no boiling point up to 500 °C.