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Physical & Chemical properties

Melting point / freezing point

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melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23 Oct 2014 to 30 Oct 2014
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
July 1995
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
May 2008
GLP compliance:
The study was carried out in a laboratory accredited under GLP, however the study itself was not subject to GLP audit
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
150.9 °C
Atm. press.:
> 101.3 - < 101.5 kPa
Remarks on result:
other: Relative standard deviation: 0.35%

Thermographic Data, Determination 1 - 4

-   Endotherm onset temperature 1: 150.08 °C (423 K)

-   Endotherm onset temperature 2: 150.99 °C (424 K)

-   Endotherm onset temperature 3: 151.22 °C (424 K)

-   Endotherm onset temperature 4: 151.12 °C (242 K)

In a valid, reliable and conclusive study according to OECD TG 102 (1995) and Method A1 (EC) No 440/2008, the melting temperature of the test item was determined to be 150.9 °C (424.0 K). at 101.3 to 101.5 kPa.
Executive summary:

The study was performed to determine the melting temperature of the test item according to OECD TG 102 (1995) and Method A1 (EC) No 440/2008. The mean melting temperature of the test item was 150.9 °C (424.0 K), with a relative standard deviation of 0.35 % from the four determinations performed. Atmospheric pressure was 101.3 to 101.5 kPa.

Description of key information

150.9 °C (424.0 K), OECD 102, differential scanning calorimetry (DSC), O'Connor 2014

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
150.9 °C

Additional information