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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.1 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
1 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.01 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
1 mg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.101 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:
0.142 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) = 2.52

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

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

= (2.52/1150) * 0.1 * 1000

= 0.219 mg/kg wwt

= 1.008 mg/kg dw

 

PNEC marine water sediment:

K_(susp-water) = 2.52

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

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

= (2.52/1150) * 0.01 * 1000

= 0.0219 mg/kg wwt

= 0.1008 mg/kg dw

 

PNEC soil:

K_(soil-water) = 2.14

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

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

= (2.14/1700) * 0.1 * 1000

= 0.126 mg/kg wwt

= 0.142 mg/kg dw

Conclusion on classification

Aquatic acute toxicity

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

48 h, EC50 (Daphnia magna): >100 mg/L (nominal concentration)

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

Aquatic chronic toxicity

72 h, ErC10 (Desmodesmus subspicatus): 76 mg/L (nominal concentration)

Biodegradation: readily biodegradable: 85 % after 21 days (%O2 consumption, OECD 301 F); 95 % after 21 days (%DOC removal, OECD 302 B); 77 % after 14 days (%TOC removal, OECD 301 B)

Partition coefficient: log Kow = 1.52 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 different test conditions. The most sensitive test for the aquatic compartment was the toxicity test to algae. This study revealed a 72h-ErC50 of >100 mg/L and the 72h-EC10 of 76 mg/L. Based on these results, the substance is neither classified as short-term (acute) aquatic toxicity nor classified as long-term (chronic) aquatic toxicity according to Regulation (EC) No 1272/2008 (CLP), as amended for the twelth time in Regulation (EU) No 2019/521.