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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

1,1,3,3-Tetramethylbutyl 2-ethylperoxyhexanoate is classified as a peroxide type D.

The Self-Accelerating Decomposition Temperature (SADT) of the substances is 30°C (reference SADT: CLP regulations 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.)

1,1,3,3-Tetramethylbutyl 2-ethylperoxyhexanoate , 90.8% is a colourless clear liquid. So: The substance is not an aerosol or a gas.

The freezing point of 1,1,3,3-Tetramethylbutyl 2-ethylperoxyhexanoate is <-28°C.

The relative density of 1,1,3,3-Tetramethylbutyl 2-ethylperoxyhexanoate at 20°C is 0.8903.

The vapour pressure of 1,1,3,3-Tetramethylbutyl 2-ethylperoxyhexanoate is less than 1 Pa.

The partition coefficient log Pow value for 1,1,3,3-tetramethylbutyl peroxy-2-ethylhexanoate is 6.2.

The maximum water solubility of 1,1,3,3-Tetramethylbutyl 2-ethylperoxyhexanoate is 306 µg/L at 20°C.

The substance has no explosive and no oxidising properties.

The study on corrosion towards metal is technically not feasible.

The dynamic viscosity of 1,1,3,3-Tetramethyl peroxy-2-ethylhexanoate is 9.0 mPa.s at 20°C