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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
12.968 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:
25.747 µg/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) = 151.5


RHO_(susp) = 1150


Conversion factor (wwt -> dwt): 4.6


PNEC_freshwater sediment


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


= (151.5/1150) * 0.214 * 1000


= 28.19 µg/kg wwt


= 129.68 µg/kg dw


 


PNEC marine water sediment:


K_(susp-water) = 151.5


RHO_(susp) = 1150


Conversion factor (wwt -> dwt): 4.6


PNEC_marine water sediment


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


= (151.5/1150) * 0.0214 * 1000


= 2.819 µg/kg wwt


= 12.968 µg/kg dw


 


PNEC soil:


K_(soil-water) = 181


RHO_(soil) = 1700


Conversion factor (wwt -> dwt): 1.13


PNEC_soil


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


= (181/1700) * 0.214 * 1000


= 22.785 µg/kg wwt


= 25.747 µg/kg dw

Conclusion on classification

Acute aquatic toxicity:


96 h, LC50 (Danio rerio): >100 mg/L (nominal concentration), >2.11 mg/L (geometric mean measured concentration)


48 h, EC50 (Daphnia magna): >100 mg/L (nominal concentration), >0.484 mg/L (geometric mean measured concentration)


72 h, ErC50 (Pseudokirchneriella subcapitata): 0.214 mg/L (initial measured concentration)


Aquatic chronic toxicity:


72 h, ErC10 (Pseudokirchneriella subcapitata): 0.109 mg/L (initial measured concentration)


Biodegradation: readily biodegradable: 67 % after 28 days (% degradation O2 consumption, OECD 301 D)


Partition coefficient: log Kow = 5.2 at 25 °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. The most sensitive test for the aquatic compartment was the toxicity test to algae. This study revealed a 72h- EC50 of 0.214 mg/L and the 72h-EC10 of a toxicity to alga and cyanobacteria test with the test substance was determined to be 0.109 mg/L. Based on these results, the substance is classified as short-term (acute) aquatic toxicity Cat. 1 (M-Factor = 1) and is classified as long-term (chronic) aquatic toxicity Cat. 3 according to Regulation (EC) No 1272/2008 (CLP), as amended for the fifteenth time in Commission Regulation (EU) 2020/1182.