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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
54 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
69 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
5.4 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
6.9 µg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.042 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:
0.052 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

 Derivation of PNECs 


The PNECs for the different compartments are calculated either by application an assessment factor (PNEC freshwater, PNEC marine water, PNEC intermittent release and PNEC stp) or using the equilibrium assumption method (PNEC sediment-freshwater, PNEC sediment-marine-water and PNEC soil). The PNEC air is not considered as relevant based on the chemical structure and intrinsic properties of the registered substance. Secondary exposure of mammals and birds is not expected, and since no adequate bird or mammalian data are available, the PNECsecondary poisoning is omitted. The utilized procedures are described in detail in the ECHA REACH Guidance of May 2008, Chapter R.10 (”Characterisation of dose [concentration]-response for environment”). 

Conclusion on classification

Data relevant for classification:


Aquatic acute toxicity


For fish:                             96 h, LC50 (Oncorhynchus mykiss): >116 mg/L


For aquatic invertebrates:    48 h, EC50 (Daphnia magna): > 100 mg/L


For algae/aquatic plants:     72 h, ErC50 (Pseudokirchneriella subcapitata): 6.9 mg/L


 


Aquatic chronic toxicity


For fish:                             NOEC, Read-across to SnCl2,  calculated as 10.1 mg/L


For aquatic invertebrates:     21d, NOEC, Read-across to Sodium bis(2-ethylhexanoate), calculated as 18.01 mg/L
                                         LOEC, Read-across to SnCl2, calculated as 1.194 mg/L


For algae/aquatic plants:     72 h, NOErC (Pseudokirchnerella subcapitata): 0.54 mg/L


 


Degradation


The substance is rapidely degradable via the biotic and abiotic route.


 


Conclusion:


 


The acute aquatic toxicity L(E)C50 values are > 1 mg/L for fish, aquatic invertebrates and algae. A chronic toxicity endpoint is available for algae (most sensitive: NOEC=0.54 mg/L), fish and daphnia. As tin bis(2 -ethylhexanoate) is rapidly degradable and the chronic ERVcompound is > 0.1 mg/L and ≤ 1 mg/L, the substance is classified and labelled as Category Chronic 3 according to Regulation (EC) No 1272/2008 (CLP).