Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

Hazard assessment conclusion:
no hazard identified

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
10 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

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 for bioaccumulation

Additional information

Conclusion on classification

Acute classification

The existing acute data for algae and Daphnia show a NOEC value > 100 mg/L (nominal). The OECD 236 on fish embryos shows no toxicity below the water solubility limit.

Chronic classification

1,1,4,4-tetramethylbutane-1,4-diyl bis(2-ethylperoxyhexanoate is readily biodegradable, and the measured log Kow is >6.5. No toxicity was observed at the water solubility limit in any of the performed tests (Daphnia and algae).

When chronic data for less than 3 trophic levels are available the classification is assessed using both the existing chronic and acute data, and the most stringent outcome is chosen.

Based on chronic data: No toxicity at the w/s: No classification

Based on acute data: No toxicity at the w/s: No classification

Category chronic 4 evaluation - Substance is poorly water soluble, with no acute toxicity recorded up to the water solubility, is rapidly degradable and the log Kow > 4. Since the substance is rapidly degradable, it does not fit into this category

Most stringent outcome: None

Overall classification: None