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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 05/03/2008 to 21/05/2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to an internationally recognised method, and under GLP. The substance is adequately characterised with its isomers composition. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: BS4633; Determination of crystallizing point
GLP compliance:
yes (incl. QA statement)
Remarks:
inspection 15-16/11/2006; signed 26/02/2007
Type of method:
method to determine freezing temperature
Melting / freezing pt.:
< -7 °C

On cooling, the test material became highly viscous but did not solidify.

Detailed results and graphs are available in the study report.

Accuracy +/-0.5 °C

Executive summary:

The freezing point of the test substance was determined under GLP according to BS4633 (listed in OECD 102/EU A1 guideline), crystallizing point method.

Two main runs were performed. Viscosity increased, but no solidification was observed at the lowest testing temperature.

The freezing temperature of the test substance was determined as less than -7°C.

Description of key information

Freezing point (i.e. transition from liquid to solid) < -7°C

Key value for chemical safety assessment

Additional information

A fully reliable experimental study, conducted according to a recognized EC method and under GLP, is available. Therefore, it is considered as a key study. As no solidification was observed down to the minimum testing temperature, the result is expressed as a limit value, and cannot be retained as key data.