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Physical & Chemical properties

Melting point / freezing point

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Administrative data

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melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17 Jun - 5 Sep 2013
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study
Reason / purpose for cross-reference:
reference to same study
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
according to guideline
EPA OPPTS 830.7200 (Melting Point / Melting Range)
GLP compliance:
yes (incl. QA statement)
Ministerie van Volksgezondheid, Welzijn en Sport, Den Haag
Type of method:
thermal analysis
differential scanning calorimetry
Key result
Melting / freezing pt.:
-23 °C
Atm. press.:
ca. 1 013 hPa

Experiment 1: During cooling an exothermic peak was observed between -50 °C and -60 °C. The effect was obtained due to crystallization of the test substance. During heating an endothermic peak between -50 °C and 0 °C was observed. The extrapolated onset temperature of the peak was -22.92 °C. The effect was due to melting of the test substance.

Experiment 2 (performed as a duplicate of experiment 1): The extrapolated onset temperature of the melting peak was -22.78 °C.

Average from two experiments: -22.85 °C; rounded up to -23 °C.

Description of key information

-23 °C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-23 °C

Additional information

The melting range of the substance was determined using differential scanning calorimetry according to EU Method A.1 and guidelines OECD 102 and OPPTS 830.7200.