Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
13 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
130 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
1.3 µg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
13 µg/L

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
205 µg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
20.5 µg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
33.4 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

PNEC sediment(freshwater), PNEC sediment (marine waters), PNEC soil

No toxicity tests with sediment dwelling or terrestrial organisms are available. Thus, in accordance with the Guidance on information requirements and chemical safety assessment, Chapter R.10: Characterisation of dose [concentration]-response for environment, 2008, the PNEC for freshwater and marine water sediment as well as the PNEC soil have been calculated with the equilibrium partitioning method using EUSES 2.1.

 

The following data have been taken into account for calculation: 

Molecular weight

284 (weighted mean)

Melting point

3.3°C

Vapour pressure

0.0015 Pa at 20°C

Water solubility

211 mg/L at 20°C

Log Kow

2.05 at 25°C

PNEC Aqua(freshwater)

13 µg/L

PNEC Aqua(marine water)

1.3 µg/L

 

The calculation resulted in a PNEC sediment(freshwater) of 205 µg/kg sediment dw, a PNEC sediment (marine waters) of 20.5 µg/kg sediment dw and a PNEC soil of 33.4 µg/kg soil dw.

Conclusion on classification

Based on the results from the aquatic toxicity (LC50/EC50 values between 10 and 100 mg/l) and since the substance is readily biodegradable and has a log Pow below 4, the substance is not classified for environmental hazards according to Directive 67/548/EEC and CLP Regulation 1272/2008.