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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03 Apr - 30 Aug 1995
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Remarks:
Samples were placed in sealed aluminum capsules and rapidly cooled down by liquid nitrogen and then heated up (heating rate 10 K/min). The occurring endothermic peak is attributed to the melting point.
Key result
Melting / freezing pt.:
-7 °C

Validity criteria for the measurement of the melting point:




















Target condition according to guideline:Actual condition according to the study:Validity criteria met:
The mean of at least two measurements which are in the range of the estimated accuracy is reported as the melting temperature.The mean of three measurements were reported.Yes
The differential scanning calorimetry is suitable to use for substance with low melting point and the temperature range for the differential scanning calorimetry method is 173 to 1273 K (corresponds to -100 to 964°C). The melting point of the test substance was within this range (-7°C). Yes
Conclusions:
The melting point of the test substance is -7°C.
Executive summary:

The study was performed to determine the melting point of the test substance by differential scanning calorimetry. The study was conducted in accordance with EEC Testing Guideline A.3 'determination of the melting point' The melting point of the test substance is -7°C.

Description of key information

A study was performed to determine the melting point of the test substance by differential scanning calorimetry. The study was conducted in accordance with EEC Testing Guideline A.3 'determination of the melting point' The melting point of the test substance is -7°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-7 °C

Additional information