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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
5.971 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
25.2 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:
40.1 µg/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

Hazard assessment for the aquatic environment

Acute toxicity studies for the submission substance were available for three trophic levels, i.e. algae, daphnia and fish. The most sensitive organisms were green algae, and the derived effect concentration was used as basis of PNECaqua derivation (72h-EC50 = 17.57 mg/L). All studies were considered reliable and adequate for the environmental hazard assessment for aquatic organisms.

Hazard assessment for the terrestrial environment

Predicted no effect concentration were derived by the equilibrium partitioning method according to ECHA Guidance R.10.

Conclusion on classification

Acute hazard category

There are adequate short-term studies available covering three trophic levels, i.e. algae, daphnia and fish. According to Regulation (EC) No 2008/1272, the submission substance does not need to be classified for aquatic acute hazards, because available EC50 values are > 1 mg/L, i.e. the most sensitive EC50 value is 72-EC50 (Pseudokirchneriella subcapitata, growth rate) = 17.57 mg test item/L.

 

Chronic hazard category

There is one adequate long-term toxicity effect concentration available, i.e. for algae. The derived effect concentration is 72h-NOErC (Pseudokirchneriella subcapitata, growth rate) = 4.42 mg test item/L. The submission substance is rapidly biodegradable but the log Kow > 4. Following the classification system of Regulation (EC) No 2008/1272, the submission substance does not need to be classified based on chronic data but must be classified for aquatic hazard category chronic 3, based on acute derived effect concentrations (i.e. 10 mg/L < EC50 < 100 mg/L, for not rapidly biodegradable substances or substances having a log Kow > 4).

 

In conclusion, the submission substance is classified for aquatic hazard category chronic 3, ‘harmful to aquatic life with long-lasting effects' (H412).