Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

Marine water

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
2 mg/L
Assessment factor:
10

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential to cause toxic effects if accumulated (in higher organisms) via the food chain

Additional information

Conclusion on classification

The measured log Kow value of 1,1 -di(tert-amylperoxy)cyclohexane is higher than the threshold value of 3 and this peroxide is considered as not biodegradable.

All the acute toxic effects showed no effect of the peroxide to the aquatic organisms.

Moreover, the hydrolysis study demonstrated that 1,1-di(tert-amylperoxy)cyclohexane is very rapidly hydrolysable. Therefore, the parent substance can be considered as rapidly degradable in the environment.

The potential hydrolysis products, tert-amyl alcohol and cyclohexanone, do not fulfil the criteria for classification as hazardous to the aquatic environment.

Similarly, no acute or chronic classification of aquatic environmental hazards should be applied to 1,1-di(tert-amylperoxy)cyclohexane.