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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:
23rd December 1994 to 31st March 1995
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results.
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
Date of inspection: 31st January 1994 Date of signature: 16th March 1994
Type of method:
method to determine freezing temperature
Specific details on test material used for the study:
Container: metal canister
Storage conditions: Room temperature until 1st December 1994, thereafter room temperature in the dark.
Melting / freezing pt.:
-11 °C
Atm. press.:
ca. 101.3 hPa
Decomposition:
no
Sublimation:
no
Key result
Melting / freezing pt.:
-12 °C
Atm. press.:
ca. 101.3 hPa
Decomposition:
no
Sublimation:
no
Conclusions:
The freezing point of ST 02 C 94 was determined to be -12 +/- 0.5 °C.
Executive summary:

Method: The experimental procedure used complied with that specified in EU Method A1.

Procedure: An aliquot of test material was placed into freezing point apparatus, and cooled using a dry ice/acetone bath.

Results: The freezing point of ST 02 C 94 was determined to be -12 +/- 0.5 °C.

Description of key information

Experimental freezing point (i.e. liquid-to-solid transition).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-12 °C

Additional information

An experimental study on freezing point measurement of the test material, was conducted under GLP, and considered as fully reliable. Therefore the result is considered as key data.