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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

The melting point for FC-72 is < -86 °C.

Key value for chemical safety assessment

Additional information

In the key study, warming curves were used to determine a melting point range of -87.1 to -86.05 °C for perfluoro-n-hexane and a glass transition temperature range of -140 to -136 °C for perfluoro-2-methylpentane. The procedure was documented. However, the study was not conducted in accord with GLP guidelines; therefore, the results are considered reliable with restrictions. The data included in the report was for the purified isomers rather than for FC-72 itself.

The company data sheet reports a pour point for FC-72 of -90°C; this value is included in a table of physicochemical properties only and cannot be assessed as to reliability.