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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

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

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
no data available: testing technically not feasible

Sediment (marine water)

Hazard assessment conclusion:
no data available: testing technically not feasible

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.238 mg/kg soil dw
Assessment factor:
1 000

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Classification for acute aquatic category:

The aquatic toxicity test results of the substance are the following:

  • Luminescent bacteria inhibition test, Vibrio fischeri;30 min exposure, expressed as exposure loading rates; EL50 -value 16.79 mg/L
  • Algae growth inhibition test, Desmodesmus subspicatus; 72 hours exposure,expressed as EL50 -value 27.17 mg/L
  • Limit test on acute toxicity to fish (Poecilia reticulata);24-hours exposure100 % mortality
  • Water flea immobilisation test, Daphnia magna, 48 hours exposure, expressed as EL50 -value 60.71 mg/L

Based on results, the data is conclusive but not sufficient for the substance to be classified for acute aquatic toxicity cat. 1, as all the results are > 1 mg/L.

Classification for aquatic chronic categories:

Acute aquatic toxicity test results are indicating this substance to have toxicity loading rates within the range of 10-100 mg/L. In addition, the biodegradation screening test results in water indicated that this substance was inherently biodegradable in water (OECD 301B). Some biodegradation occurred (biodeg-% 49.6) but the criteria for ready biodegradability was not fulfilled (failing 10 day-window). The substance is also hydrolytically stable and the half-life estimated by the preliminary study (OECD 111) at three pH-values is over one year. 

Based on the experimental data on the partition coefficient study (EC 444/2008), the substance might contain substances having potential for adsorption and bioaccumulation (log Kow > 3 and log Kow values >4). For complex mixtures (e.g. UVCBs), a single value of Kow will not be definitive. Therefore, a range of values were given and the study was conducted using the HPLC method. The results indicated the constituents to have log Kow values of 1.8 to 5.8, but some constituents had log Kow values of 6.4 up to 7.5. However, because of the complex and unknown composition, it was not possible to evaluate which were the minor constituents and which were the major constituents representing the measured log Kow values.

The results are indicating the need of the substance to be classified as environmentally hazardous having hazard classification as Aquatic Chronic Cat. 3 according to the CLP regulation. The proposed classification according to the 67/548/EEC directive is R52-53.