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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.038 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:
0.068 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

The environmental classification of the test substance is currently not harmonized according to the CLP Regulation (EC) 1272/2008 and the Dangerous Substance Directive 67/548/EC. Based on available acute aquatic toxicity data, the lowest valid effect concentration for freshwater aquatic organisms is 14 mg/L (ErC50 for algae). Based on the available acute data, the substance should not be classified for acute toxicity following Annex I, table 4.1.0 of the CLP regulation (there are no acute values ≤ 1 mg/L). In the algal growth inhibition study, the NOErC for algae was 2.3 mg/L. No other long-term values are available, therefore the final classification is made according to the most stringent outcome of the available chronic and acute effect concentrations.

 

The biodegradability of the test substance was determined according to OECD 302 B.  The test item attained 99% biodegradation after 28 days. OECD Guideline No. 302B does not give any definitive pass levels for test items, however the “Revised Introduction to the OECD Guidelines for Testing of Chemicals, Section 3 (2006)” suggests that a figure of more than 20% biodegradation may be regarded as evidence for inherent, primary biodegradability.  A figure of more than 70% mineralization may be regarded as evidence for ultimate inherent biodegradation. The test item can therefore be considered to have exhibited evidence of ultimate biodegradation under the experimental conditions employed in this study.

The potential classification is made for the chronic algae data, following Annex I, table 4.1.0 b (ii) of the CLP Regulation. The resulting classification was compared with the potential classification made using the acute toxicity data for the other trophic levels, following Annex I, table 4.1.0 b (iii) of the CLP Regulation. Taking into account that the NOErC for algae is > 1 and the fact that the substance is rapidly degradable and its log Kow is < 4, the substance is not classified for chronic toxicity under the CLP regulation.