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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Di-tert-butyl peroxideis classified as a peroxide Type E. Flammability is an intrinsic hazard in this class

Di-tert-butyl peroxide is a colourless clear liquid with a faint odour, so it is not an aerosol or gas under pressure.

Di-tert-butyl peroxide has a freezing point lower than -29°C.

The density of di-tert-butyl peroxide is 0.79 g/cm3.

The vapour pressure of di-tert-butyl peroxide is 35 mBar (3500 Pa) at 20°C.

Di-tert-butyl peroxide has an octanol-water partition coefficient of log Pow 3.2.

Di-tert-butyl peroxide has a water solubility of 171 mg/L at 20°C and pH 8.1.

The flash point of di-tert-butyl peroxide is 6°C.

The substance has no explosive properties.

The substance has no oxidizing properties.

The study on corrosion towards metal is technically not feasible.

The viscosity of di-tert-butyl peroxide is 0.83 20°C.

Additional information