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Physical & Chemical properties

Melting point / freezing point

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Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-08-07 to 2008-11-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
ca. 129 °C
Decomposition:
yes
Remarks:
310 J/g.

Melting Point/ Melting Range (DSC)


Two DSC-runs in aluminium crucibles with a hole showed an endothermic effect (melting) in thetemperature range 120 - 150°C with an onset temperature of 129°C and 130°C, respectively. Theonset temperature is derived from the intersection of the tangent line with the highest slope of theendothermic peak with the baseline.
























Ident-No.



Onset / o c



Temperature range / o c



Crucible



28602



129.57



120 - 150



Aluminium with a hole



28603



129.30



120 - 150



Aluminium with a hole



The test item has a mean melting point of 129 °C.


Graphical presentations of the DSC runs No. 28602 and 28603 are given on figure 2.


 

Conclusions:
The test item has a melting point of 129.0°C at atmospheric pressure (1013.3 hPa).

Description of key information

The test item has a melting point of 129.0°C at atmospheric pressure (1013.3 hPa).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
129 °C

Additional information