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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)

melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 03/07/2012 to 24/07/2012
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
The study was conducted according to an internationally recognised method, and under GLP. Purity is specified. Therefore full validation applies.
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
according to guideline
other: BS4633; Determination of crystallizing point
GLP compliance:
yes (incl. QA statement)
inspection 15-16/11/2011, decision 12/03/2012, signature 01/05/2012
Type of method:
method to determine freezing temperature
Specific details on test material used for the study:
Storage condition of test material: Refrigerator (between 0 and 10°C under nitrogen)
Key result
Melting / freezing pt.:
-1.5 °C

Detailed results and graphs are available in the study report.

The test material change in appearance during cooling.

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. Freezing (i.e. liquid-solid transition) occurs at the mean temperature of -1.5°C (271.5K).

Description of key information

Freezing (i.e. liquid-solid transition) occurs at the temperature of -1.5°C (271.5K).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-1.5 °C

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study. The result is retained as key data.