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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties


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Description of key information

The density of FC-72 is 1.678 g/cm3 at 25 °C (ASTM D4052-96).

Key value for chemical safety assessment

Additional information

The key study was conducted under method ASTM D4052-96. The study was not conducted in accord with GLP guidelines; therefore this study is classified as reliable with restrictions. In a supporting study of two purified chemical components of the FC-72 mixture, a density of 1.6948 g/cm3 at 21.46 °C was reported for perfluoro-n-hexane and a density of 1.7319 g/cm3 at 20.21 °C was reported for perfluoro-2-methylpentane, measured by pycnometer. The pycnometer method is included in OECD 109 but no study details were available and the study was not conducted in accord with GLP guidelines; therefore these results are considered reliable with restrictions. Another value of 1680kg/m3 at 25 °C was found in a table of physicochemical properties. However, due to few details available, it cannot be classified as to its reliability.