Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information


DMBA is a white powder at room temperature.

Melting point

The melting range of DMBA is 385-387 K (112.0-114.0 °C).

Boiling point

The boiling point of DMBA is 558 K (285.0 °C) at 726 mm Hg.

Relative density

The mean relative density of DMBA is 1.26 at 23 °C.


The results of the sieve analysis of DMBA indicate that less than 10% by mass is of particle size <75 µm, less than 1% is <30 µm and no measurable mass is <10 µm.

Vapour pressure

The vapour pressure of DMBA at 25 °C (298 K) was determined to be 0.000016 Pa.

Octanol/water Partition coefficient (Pow)

Partition coefficient, Pow, of DMBA was calculated to be 0.21 (log Pow = -0.68) at 20 °C and pH 4.

Water solubility

Water solubility of DMBA was calculated to be 487 ± 5 g/L at 20 °C and pH range of 1.79-1.85.

Surface tension

Surface tension of DMBA (1 g/L) was calculated to be 71.0 mN/m at 21 °C and it was not surface active.

Self-ignition temperature

DMBA does not self-ignite before melting.


DMBA is considered as non-flammable.