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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
PNEC aqua (freshwater)
PNEC value:
0.55 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.55 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.055 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.304 mg/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:
0.284 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

The PNEC derivation was as follows justified:

PNEC freshwater sediment:

K_(susp-water) = 1.38

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

= (K_(susp-water) / RHO_(susp)) * PNEC_water * 1000

= (1.38/1150) * 0.55 * 1000

= 0.66 mg/kg wwt

= 3.036 mg/kg dw

 

PNEC marine water sediment:

K_(susp-water) = 1.38

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

= (K_(susp-water) / RHO_(susp)) * PNEC_marine water * 1000

= (1.38/1150) * 0.055 * 1000

= 0.066 mg/kg wwt

= 0.3036 mg/kg dw

 

PNEC soil:

K_(soil-water) = 0.778

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

= (K_(soil-water) / RHO_(soil)) * PNEC_freshwater * 1000

= (0.778/1700) * 0.55 * 1000

= 0.2517 mg/kg wwt

= 0.2844 mg/kg dw

Conclusion on classification

Aquatic acute toxicity

96 h, LC50 (Oncorhynchus mykiss/Danio rerio): >100 mg/L (nominal concentration)

48 h, EC50 (Daphnia magna): 1340 mg/L (nominal concentration)

72 h, ErC50 (Desmodesmus subspicatus): >100 mg/L (nominal concentration)

Aquatic chronic toxicity

72 h, ErC10 (Desmodesmus subspicatus): >100 mg/L (nominal concentration)

Biodegradation: readily biodegradable, 65.3 % in 28 days (%Co2 evolution in OECD 301B)

Partition coefficient: log Kow = 0.51 at 20 °C

Classification according to CLP

The available experimental test data are reliable and suitable for classification purposes under Regulation (EC) No 1272/2008. The test substance was found to be readily biodegradable under the test conditions. No effects were observed in all toxicity studies qith aquatic species (fish, Daphnia and algae) up to the limit test concentration of 100 mg/L. The water solubility of the test item was determined to be 55 mg/L (=critical micelle concentration (CMC)). Until the water solubility no toxic effects were observed. Based on these results, the substance is not classified as short-term (acute) aquatic toxicity nor is classified as long-term (chronic) aquatic toxicity hazard in accordance to Regulation (EC) No 1272/2008 (CLP), as amended for the tenth time in Commission Regulation (EC) No 2017/776.