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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate is classified as an organic peroxide type D. Flammable solids since flammability is an intrinsic hazard in this class.

The Self-Accelerating Decomposition Temperature (SADT) of the substances is 55°C (reference SADT: CLP regulations 2.15.2.3 and UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 5th revised edition, sub-sections 28.1, 28.2, 28.3 and Table 28.3.)

O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate is a colourless clear organic liquid with a faint odour. So: The substance is not an aerosol or a gas.

The freezing point of O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate is below -25°C.

The relative density of O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate at 20°C is 0.9307.

The vapour pressure of O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate at 50°C is lower than 0.1 mbar(=10 Pa).

The partition coefficient log Pow value for O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate is 5.8.

The water solubility of O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate is 212.5 µg/L at 20°C.

The study on corrosion towards metal is technically not feasible.