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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental dates: 22 March 2019 to 23 May 2019
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
The study was conducted according to an internationally recognised method, and under GLP. No deviation affected the quality of the study. The substance is adequately identified, but some data on composition is missing. Therefore validation applies with restrictions.
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Commission Regulation (EC) No 440/2008
according to guideline
other: British Standard Method BS4633 - Method for the Determination of Crystallizing Point
Version / remarks:
GLP compliance:
yes (incl. QA statement)
issued 01/08/2019
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
13.5 °C

In duplicate determinations, the test item was observed to freeze at 13.5˚C (mean of 14.0˚C and 13.0˚C), as indicated by crystallisation and a plateau in the cooling curve over 5 consecutive readings (2 minutes) at this temperature. Seeding was required just before the crystallisation point to prevent supercooling.

No temperature correction was required for thermometer error and the duplicate determinations were within the estimated accuracy of the method (± 0.5°C).

Executive summary:

The freezing point of the test substance was determined under GLP according to OECD 102/EU A1/BS4633 guidelines, using a method to determine the crystallising point.

Duplicate deteminations were performed, and the mean final temperature was retained.

The freezing temperature of test substance was determined to be 13.5°C.

Description of key information

Experimental freezing point (i.e. transition from liquid to solid) = 13.5°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
13.5 °C

Additional information

A reliable experimental study, conducted according to a recognized OECD/EU/BS method and under GLP, is available.

Despite minor restrictions due to incomplete test item identification, it is considered as key study, and the result is retained as key data.