Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

The substance is a liquid as evidenced by the experimentally determined mp of -33 oC.

Boiling point endpoint is waived as substance decomposes before boiling (SADT is 25 oC).

The relative density of tert-pentyl peroxypivalate, 75% solution in isododecane is 0.8619 (± 0.0000). Note that the organic peroxide cannot be handled in pure form.

The vapor pressure of commercially marketed Trigonox 125-C75 at 35 oC is 100 Pa (contains 25 % isododecane).  From this, the vapor pressure of the contained tert-amyl peroxypivalate is calculated as 14 Pa @ 35 oC.

The partition coefficient log Kow value for tert-amyl peroxypivalate is 3.3.

The measured water solubility is 504 mg/L @ 20 oC.

Additional information