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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.006 mg/L
Assessment factor:
1 000
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:
10 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.009 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:
0.014 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential to cause toxic effects if accumulated (in higher organisms) via the food chain

Additional information

PNECs were derived from the most sensitive test available for each compartment.


PNEC freshwater and marine sediment (MEKP monomer)





PNEC soil (MEKP monomer)





 


PNEC freshwater and marine sediment (MEKP-dimer)


The PNECsediment was derived by the equilibrium partitioning method, with Ksusp-water calculated by EUSES (v2.1, 2003).


K_susp-water = 3.91


RHO_susp = 1150


 


PNEC_freshwater sediment = (K_susp-water/RHO_susp)*PNEC_water*1000


= (3.91/1150) * 5.6E-03 * 1000


= 1.9E-02 mg/kg wwt


= 8.76E-02 mg/kg dw


 


PNEC_marine sediment = (K_susp-water/RHO_susp)*PNEC_marine water*1000


= (3.91/1150) * 5.6E-04 * 1000


= 1.9E-03 mg/kg wwt


= 8.76E-03 mg/kg dw





 


PNEC soil (MEKP-dimer)


The PNECsoil was derived by the equilibrium partitioning method, with Ksoil-water calculated by EUSES (v2.1, 2003).


K_soil-water = 3.81


RHO_susp = 1700


 


PNEC_soil = (K_soil-water/RHO_soil)*PNEC_water*1000


= (3.81/1700) * 5.6E-03 * 1000


= 1.26E-02 mg/kg wwt


= 1.42E-02 mg/kg dw




Conclusion on classification

Acute toxicity:


Algae is the most sensitive species to the acute toxic effects of the test item with an acute EC50 of 5.6 mg/L. Based on the these data, the substance has not to be classified with regard to short-term (acute) environmental toxicity according to Regulation (EC) No 1272/2008 (CLP/GHS), as amended for the seventeenth time in Regulation (EU) 2021/849.


 


Chronic toxicity:


Algae has a NOEC of 2.1 mg/L. Since the test substance is readily biodegradable, the substance has not to be classified for long-term (chronic) toxicity according to Regulation (EC) No 1272/2008 (CLP/GHS). Furthermore, based on the short-term toxicity data, the substance has also not to be classified for long-term (chronic) toxicity according to Regulation (EC) No 1272/2008 (CLP/GHS), as amended for the seventeenth time in Regulation (EU) 2021/849.