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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
Study period:
8th - 19th September, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
not specified
Type of method:
differential scanning calorimetry
Melting / freezing pt.:
< -80 °C
Atm. press.:
101.3 kPa
Decomposition:
no
Sublimation:
no

DSC trace attached.

The cooling run showed no crystallization. A melting below -80 °C is possible but outside the measuring area of the test system.

Conclusions:
The melting point of the substance is < -80 °C.
Executive summary:

The melting point of the test item was determined using Differential Scanning Calorimetry according to OECD TG 102. The test item was cycled between -90°C and 50°C with a heating/cooling rate of 10 K/min in 2 cycles. A capsulated crucible was used. The test item showed no melting of crystalline subcomponents between -80 °C and 50 °C. The cooling run showed a crystallization.

Description of key information

The melting point is < -80 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-80 °C

Additional information

The melting point of the test item was determined using Differential Scanning Calorimetry according to OECD TG 102. The test item was cycled between -90°C and 50°C with a heating/cooling rate of 10 K/min in 2 cycles. A capsulated crucible was used. The test item showed no melting of crystalline subcomponents between -80 °C and 50 °C. The cooling run showed a crystallization.