Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
62.8 ng/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.628 µg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
65.5 µg/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:
0.131 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

Conclusion on classification

Environmental classification and labelling of a substance is generally based on data from short-term aquatic toxicity results, the ready biodegradability of the substance and an experimentally determined BCF (or if absent the measured octanol/water partition coefficient). Available adequate chronic toxicity data is also relevant for the assessment of long-term aquatic hazards (Regulation 286/2011/EC). 

Short-term aquatic toxicity information is available for all three trophic levels. The L(E)C50 values for daphnia and fish are < 1mg/L. Therefore the substance is classified Category Acute 1 (H400) for short-term hazards to the aquatic environment according to the CLP Regulation 1272/2008/EC.

Chronic aquatic toxicity data is only available for one trophic level (algae). Therefore, the long-term hazard has been assessed based on both: 

a) The chronic aquatic toxicity data for algae (72 hr NOEC = 1.83 mg/l), which results in no chronic classification because the value is > 1 mg/L, and 

b) The acute aquatic toxicity data for daphnia (EC50 =0.9 mg/L), fish (LC50 = 0.628mg/L, QSAR) and environmental fate data (not readily biodegradable and log Kow of 5 for main isomer), which results in a Chronic 1 classification, and classifying according to the most stringent outcome. 

Thus it is concluded that the substance is classified Category Chronic 1 (H410) for long-term hazards to the aquatic environment according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.

According to Regulation (EC) No. 286/2011, Table 4.1.3, in order to classify a mixture containing the substance an M-factor of 1 should be used when applying the summation method since the EC50 is > 0.1mg/L and <= 1mg/L. The M-factor of 1 applies to both the Acute 1 and Chronic 1 classification.