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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.05 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.5 mg/L

Marine water

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

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
16 000 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
1 600 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:
1 900 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
110 mg/kg food
Assessment factor:
90

Additional information

Conclusion on classification

Conclusions on Classification:

  

In the absence of adequate aquatic chronic toxicity information from all three trophic levels, the classification was based on the results from short-term aquatic toxicity testing (algal growth inhibition test, acute daphnid immobilsation test and acute fish toxicity test). In each study, the NOEC was reported as the highest test concentration in the test (100% v/v saturated solution, based on a loading rate of 50 mg/L). Therefore, based on the results of these three tests, no toxicity was observed in any of the three trophic levels. Furthermore,there is no evidence that the acute toxicity tests do not provide a true measure of the intrinsic aquatic toxicity of the substance. Although the substance was not shown to be readily biodegradable, the substance exhibited inherent primary degradability (i.e., 26% degradation in 28 days, and 42% degradation in 60 days under the strictly controlled conditions of a ready biodegradability assay). Therefore, while the substance is not expected to be very persistent in the environment, it does exhibit the potential to be persistent.  The predicted bioconcentration factor (BCF = 2,592 L/kg w.w.), estimated by a validated QSAR model (EPI Suite BCFBAF v3.01), is above the criterion of concern for food chain exposures (BCF ≥ 100), and the. predicted octanol-water partition coefficient (log Kow) of 7.23is above the criterion (log Kow≥ 4.0) for possible environmental classification. Therefore, food chain exposures and bioaccumulation of the substance are of potential concern. In summary, although there is no evidence that the acute toxicity tests do not provide a true measure of the intrinsic aquatic toxicity of the substance, the substance exhibits the potential to be persistent or bioaccumulative in the environment. Therefore, the substance was assigned a Category Chronic 4 classification.