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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

melting point/freezing point
Type of information:
experimental study
Adequacy of study:
other information
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: reliable inhouse method

Data source

Reference Type:
other company data
Report date:

Materials and methods

Principles of method if other than guideline:
The molten sample is slowly cooled to about 3 -5 °C below the expected freezing point by stirring a thermometer by ambient conditions. Crystallisation is then triggered either by rubbing with the thermometer at the test-tube wall or by inoculation. The seed crystals are evenly distributed in the sample by stirring intensely for a short period. After initialisation of crystallisation, the thermometer is only slowly moved up and down without touching the test-tube wall until the highest temperature is reached. The highest temperature is recorded, accurate to 0.1 °C, and is given as the freezing point. Temperature correction, if given in calibration certificates, is accounted for.
GLP compliance:

Test material

Results and discussion

Melting / freezing point
Melting / freezing pt.:
53 °C
Remarks on result:
other: Freezing point

Applicant's summary and conclusion

The freezing point of the test item was determined to be ca. 53°C.