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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
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well documented and reported study fully adequate for assessment. The study was conducted according to internationally accepted technical guidelines and in compliance with GLP in a recognized contract research organization.
according to
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
< -20 °C
Remarks on result:
other: No crystallization observed at the lower temperature limit of the test apparatus of -20°C.

Due to the nature of the sample crystallization was not observed. However a pour point (the temperature at which flow of the sample surface is restricted) was observed at -9.8°C (run 1) and -9.7°C (run 2).

The freezing point of WS400402 was determined < -20°C (= lower temperatur limit of the test apparatus).

Description of key information

(EC) 440/2008, Annex Part A test A1.

The freezing point of WS400402 was determined being < -20°C.

Key value for chemical safety assessment

Additional information

The freezing point of WS400402 could not determined exactly. The value is below the lower temperature limit of the test apparatus (-20°C).