Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Ecotoxicological Summary

Currently viewing:

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.014 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.056 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.001 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.056 mg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
15 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.041 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:
0.205 mg/kg soil dw
Assessment factor:
50
Extrapolation method:
assessment factor

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) = 7.35

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

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

= (7.35/1150) * 0.0139 * 1000

= 0.0888 mg/kg wwt

= 0.409 mg/kg dw

 

PNEC marine water sediment:

K_(susp-water) = 1.25

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

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

= (7.35/1150) * 0.00139 * 1000

= 0.00888 mg/kg wwt

= 0.0409 mg/kg dw

Conclusion on classification

Acute aquatic toxicity:

96 h, LC50 (Oryzias latipes): 18.8 mg/L (nominal concentration)

48 h, EC50 (Daphnia sp.): 12 mg/L (nominal concentration)

72 h, ErC50 (Pseudokirchneriella subcapitata): 5.62 mg/L (initial measured concentration)

Aquatic chronic toxicity:

28 d, NOEC (Cyprinus carpio): >2 mg/L (nominal concentration)

21 d, NOEC (Daphnia magna): 0.139 mg/L (measured geometric mean concentration)

72 h, NOEC (Pseudokirchneriella subcapitata): 0.461 mg/L (initial measured concentration)

Biodegradation: inherently biodegradable: ca. 60 % after 39 days (% degradation CO2 evolution, OECD 301 B), ca. 85 % after 81 days (OECD 303A)

Partition coefficient: log Kow = 3.36 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 not be readily biodegradable but to be inherently biodegradable. Additionally, a sewage treatment plant biodegradation test was performed and after a lag phase the test item degraded up to 85 %. The most sensitive specie was the Daphnia magna in the long-term reproduction study. The NOEC based on reproduction and mortality was determined to be 0.139 mg/L. With regard to the short-term toxicity, the most sensitive specie was the green algae. An ErC50 was determined to be 5.62 mg/L. Based on these results, the substance is not classified as short-term (acute) aquatic toxicity but is classified as long-term (chronic) aquatic toxicity in Cat. 2 (H411) according to Regulation (EC) No 1272/2008 (CLP), as amended for the twelfth time in Regulation (EC) No 2019/521.