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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The melting point of members of this category are <-20°C (C12 and C16). As melting point increases with carbon number C8 members of this category would also have melting point <-20°C.

Proprietary studies from Evonik (2008) on 97280-83-6 (no melting point found) and Aqura (2006) on tetrabutene (-58.5 °C) are available. These studies are non-GLP but follow standard guidelines and are considered reliable and suitable for use as the Key studies for this endpoint. Category members are therefore considered to have a melting point of less than-20 °C. No further studies are required in accordance wih column 2 of REACH Annex VII.

The mean of the melting point values for the category is -58.5°C and this has been used to complete the 'key value for chemical safety assessment'.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-58.5 °C

Additional information