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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Physical & Chemical properties

Flash point

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flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Method and purity mentioned, no GLP
Principles of method if other than guideline:
Setaflash test, Non-equilibrium method closed cup. ASTM D 3278
GLP compliance:
Type of method:
non-equilibrium method closed cup
Seta Flash
Flash point:
6 °C
Atm. press.:
ca. 1 013 mBar
Interpretation of results:
Category 2 (highly flammable liquids) based on GHS criteria
The flash point of di-tert-butyl peroxide is 6°C.
Executive summary:

The flash point of di-tert-butyl peroxide was determined according to ASTM method D 3278 using the Setaflash non-equilibrium closed-cup method. The flash point was determined to be 6 °C.

Description of key information

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

Key value for chemical safety assessment

Flash point at 101 325 Pa:
6 °C

Additional information