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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.001 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:
0.001 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

Aquatic acute toxicity

48 h, EC50 (Daphnia magna) = 11.115 mg/L (nominal loading rate) = 3.33 µg/L (estimated concentration based on measured concentration)

72 h, ErC50 ( Pseudokirchneriella subcapitata) > 100 mg/L (nominal)

96 h, LC50 (Oncorhynchus mykiss) > 100 mg/L (nominal)

Aquatic chronic toxicity

72 h, ErC10 ( Pseudokirchneriella subcapitata) = 91.9 mg/L

Biodegradation

not readily biodegradable

Partition coefficient

log Pow = 5.5 at 25 °C

Acute aquatic hazard: Category Acute 1

Long-term aquatic hazard: Category Chronic 1

M-factor: 100 (for acute and chronic)

Reasoning:

Acute aquatic hazard:

Acute aquatic toxicity data for daphnia (48 h, OECD 202), L(E)C50 </= 1 mg/L, results in Acute 1

Long-term aquatic hazard:

The criteria for classification of a substance into the categories Chronic 1 to 3 follow a tiered approach where the first step is to see if adequate information on long-term toxicity is available allowing long-term hazard classification. Using the surrogate system, considering the lowest acute aquatic toxicity data for daphnia (48 h, OECD 202), L(E)C50 =/< 1 mg/L, with "not ready biodegradable" and log Kow > 4, results in Chronic 1 which is the most stringent outcome.

M-factor

Since the conclusion is based on the surrogate system the M-factor is based on the acute aquatic toxicity between 0.001 and 0.01 mg/l.