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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
other: EU Method A.1 (Melting / Freezing Temperature)
Qualifier:
according to
Guideline:
other: OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry
Remarks:
DTA/DSC
Remarks on result:
not determinable

Between 25 °C and 450 °C two endothermic effects were visible. A steep signal was detected between approx. 80 °C - 90 °C indicating a melting point. For the second endothermic effect between approx. 110 °C - 150 °C a further melting range was assumed.

Between approx. 175 °C and 315 °C significant exothermic effects were observed. After the heating process a brownish residue remains in the crucible indicating decomposition of the test item.

Conclusions:
No boiling point was detectable up to decomposition of the test item.
Executive summary:

To determine the boiling point of the test item a differential thermal analysis (DTA)/differential scanning calorimetry (DSC)-system was used which conforms with the procedure Test method A.1, described in the EC Guideline.

The sample was weighed in a crucible made of aluminium with perforated lid, placed in a DTA/DSC-system and adjusted to 25 °C. The sample was then heated up to 450 °C (heating rate 5 K/min).

Between 25 °C and 450 °C two endothermic effects were visible. A steep signal was detected between approx. 80 °C - 90 °C indicating a melting point. For the second endothermic effect between approx. 110 °C - 150 °C a further melting range was assumed.

Between approx. 175 °C and 315 °C significant exothermic effects were observed. After the heating process a brownish residue remains in the crucible indicating decomposition of the test item. No boiling point was detectable up to decomposition.

Description of key information

No boiling point was detectable up to decomposition of the test item.

Key value for chemical safety assessment

Additional information

To determine the boiling point of the test item a differential thermal analysis (DTA)/differential scanning calorimetry (DSC)-system was used which conforms with the procedure Test method A.1, described in the EC Guideline.

The sample was weighed in a crucible made of aluminium with perforated lid, placed in a DTA/DSC-system and adjusted to 25 °C. The sample was then heated up to 450 °C (heating rate 5 K/min).

Between 25 °C and 450 °C two endothermic effects were visible. A steep signal was detected between approx. 80 °C - 90 °C indicating a melting point. For the second endothermic effect between approx. 110 °C - 150 °C a further melting range was assumed.

Between approx. 175 °C and 315 °C significant exothermic effects were observed. After the heating process a brownish residue remains in the crucible indicating decomposition of the test item. No boiling point was detectable up to decomposition.