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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing 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
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes (incl. QA statement)
Type of method:
thermal analysis
Key result
Melting / freezing pt.:
> 201.6 - < 202.6 °C
Decomposition:
no
Remarks on result:
other: test performed under air atmosphere

The determination of the melting point / melting range of the test item was performed according to the EEC Directive 92/69, A.1 "Melting/Freezing temperature", December 1992 and to the OECD Guideline No. 102: " Melting point / melting range", adopted July 27, 1995.

   Heating range (°C)  Heating rate (K/min)  Melting point(°C)  Melting point (K)
 Preliminary test  25 -400  20  208.2)*  481.4)*
 1st main study  180 -250  5  202.6  475.8
 2nd main study  180 -250  5  201.7  474.9
 3rd main study  180 - 250  5  201.6  474.8
    Mean of melting point:   Standard deviation (+/-)  202.0 +/- 0.4  475.2 +/- 0.4

)* not used for calculation

Conclusions:
The melting point of the test substance was determined using the differential thermal calorimeter to be 202.0°C.
Executive summary:

The melting point of the test substance was determined using the differential thermal calorimeter to be 202.0°C.

Description of key information

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
202 °C

Additional information