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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.058 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:
0.11 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) = 18.2

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

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

= (18.2/1150)*0.008*1000

= 0.13 mg/kg wwt

= 0.58 mg/kg dw

PNEC marine water sediment:

K_(susp-water) = 18.2

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

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

= (18.2/1150)* 0.0008 * 1000

= 0.013 mg/kg wwt

= 0.058 mg/kg dw

PNEC soil:

K_(soil-water) = 21

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

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

= (21/1700)*0.008*1000

= 0.098 mg/kg wwt

= 0.11 mg/kg dw

Conclusion on classification

Aquatic acute toxicity

96 h, LC50 ( Oncorhynchus mykiss): 10 - 13 mg/L (nominal concentration)

48 h, EC50 (Daphnia magna): 22 mg/L (nominal concentration)

72 h, ErC50 (Pseudokirchneriella subcapitata): 8.33 mg/L (geometric mean measured concentration)

 

Aquatic chronic toxicity

72 h, ErC10 (Pseudokirchneriella subcapitata): 4.86 mg/L (geometric mean measured concentration)

 

Biodegradation: readily biodegradable: 81 % after 21 days (% degradation O2 consumption, OECD 301 D)

Partition coefficient: log Kow = 3.5  at 35 °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 8.33 mg/L and the 72h-EC10 of a toxicity to alga and cyanobacteria test with the test substance was determined to be 4.86 mg/L. Based on these results, the substance is neither classified as aquatic acute toxicity nor classified as aquatic chronic according to Regulation (EC) No 1272/2008 (CLP) as amended for the eighth time in Commission Regulation (EU) 2016/918.