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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:
16/06/2009 – 18/06/2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes
Type of method:
method to determine freezing temperature
Melting / freezing pt.:
-5.1 °C
Remarks on result:
other: Run 1: initial freezing temperature (°C)
Melting / freezing pt.:
-4.7 °C
Remarks on result:
other: Run 2: initial freezing temperature (°C)
Melting / freezing pt.:
-16.9 °C
Remarks on result:
other: Run 1: final freezing temperature (°C)
Melting / freezing pt.:
-17.1 °C
Remarks on result:
other: Run 2: final freezing temperature (°C)

Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing temperature.

Conclusions:
Result : -4.7 to -17.1°C
Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing temperature.

Description of key information

The melting range of MDI/1,3-BD/DEG/PG is -17.1 to -4.7 ˚C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-17 °C

Additional information