Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

1,1,3,3-tetramethylbutyl hydroperoxide is classified as an organic peroxide type D.

The Self-Accelerating Decomposition Temperature (SADT) of the substances is 60°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.)

1,1,3,3-tetramethylbutyl hydroperoxide is a colourless clear liquid. So: The substance is not an aerosol or a gas.

The melting point is below a lower limit of -20°C.

The relative density of 1,1,3,3-tetramethylbutyl hydroperoxide at 20°C is 0.8886

The estimated vapour pressure of 1,1,3,3-tetramethylbutyl hydroperoxide (without volatile impurities) is 15 Pa at 20°C.

The partition coefficient log Kow value for 1,1,3,3-tetramethylbutyl hydroperoxide is 2.9.

The water solubility of 1,1,3,3-tetramethylbutyl hydroperoxide is 2.8 g/L at 20°C.

The flashpoint of the commercial product 1,1,3,3-tetramethylbutyl hydroperoxide with 2.4 -2 % diisobutylene is 37-51°C.

The substance is not flammable and 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-Tetramethylbutyl hydroperoxide is 13.0 mPa.s at 20°C.