Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

It was technically not possible to verify if di(4-tert-butylcyclohexyl) peroxydicarbonate undergoes hydrolytical degradation when dissolved in water. The reason for this is that it proved to be impossible to ascertain if the detected breakdown products are true transformation products formed during hydrolysis or artefacts due to decomposition of the parent molecule in the analytical equipment. For the purpose of risk assessment di(4-tert-butylcyclohexyl) peroxydicarbonate is thus considered to be stable towards hydrolysis.

The substance has not been found to be readily biodegradable in OECD 301 screening tests. Therefore, di(4-tert-butylcyclohexyl) peroxydicarbonate is tentatively considered to be non-degradable in the environment.

The QSAR calculated BCF of 2926 suggests that bis(4-tert-butylcyclohexyl) peroxydicarbonate may potentially be liable to bioaccumulate. However, for reasons of possible biotransformation, this is probably a conservative overestimate.

Adsorption/desorption: Based on QSAR estimation, di(4-tert-butylcyclohexyl) peroxydicarbonate has considerable potential for adsorption to soil and sediment particles or other solid organic matter. The adsorption coefficient to organic matter is Koc = 120116.