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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

The physico-chemical properties of FAT 40825 have been reviewed and summarized in the table below.



Appearance/physical state/colour

black powder

Melting point/ freezing point

>300 °C

Boiling point

>400 °C


1.688 g/cm3 at 19.5 °C

Particle size distribution (Granulometry)

D50: 4.6 μm

Vapour pressure

1.73 10-32Pa at 25 °C

Partition coefficient (log Pow)

< -4.7 at 20 °C

Water solubility

341 g/l at 20 °C

Surface tension

75.3 mN/m at 20 °C

Auto flammability

267 °C (self ignition temp.)




Not explosive

Oxidising properties

No oxidising properties

Stability in organic solvents

stable in n-octanol

Dissociation constant


Additional information