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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
25.3 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
23.1 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
8.3 µg/L
Assessment factor:
10

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
1 500 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
263 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:
24 mg/kg soil dw
Assessment factor:
3
Extrapolation method:
sensitivity distribution

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
0.557 mg/kg food
Assessment factor:
30

Additional information

In the assessment of environmental fate and toxicity of iron vanadium tetraoxide, read-across to the assessment entities „vanadium ions“ and „iron ions“ is applied since the ions of iron vanadium tetraoxide determine the environmental fate and toxicity of iron vanadium tetraoxide. Since vanadium and iron ions behave differently in the environment, a separate assessment of the environmental fate and toxicity of each assessment entity is performed. Please refer to the data as submitted for each individual assessment entity. For a documentation and justification of that approach, please refer to the separate document attached to section 13, namely Read Across Assessment Report for iron vanadium tetraoxide.

Conclusion on classification

Iron vanadium tetraoxide is poorly soluble. The results from a standard water solubility test according to OECD 105 indicate that at a loading of 25 mg/L, the dissolution of iron vanadium tetraoxide after 37 days results in a vanadium concentrations of 145.5 microg V/L whereas iron concentrations remained ≤ 1.13 microg/L. The acute and chronic ecotoxicity reference values of 0.693 and 0.120 mg V/L are based on dissolved elemental vanadium concentrations. Thus, the dissolved vanadium concentration of iron vanadium tetraoxide after 37 days in water is below the acute but not the chronic reference values for dissolved elemental vanadium. There are not any indications that the assessment entity “iron ions” (i.e. diiron trioxide) would be classified as environmental hazard under Regulation (EC) No 1272/2008.

Iron vanadium tetraoxide does not meet based on i) the acute aquatic ecotoxicity value of 0.693 mg V/L; ii) the maximum vanadium content of iron vanadium tetraoxide of 30 %, and iii) the resulting acute ecotoxicity reference value of 2.31 mg/L iron vanadium tetraoxide classification criteria of acute (short-term) aquatic hazard Category 1 of Regulation (EC) No 1272/2008.

Based on the chronic aquatic ecotoxicity value of 0.120 mg V/L; ii) the maximum vanadium content of iron vanadium tetraoxide of 30 %, and iii) the resulting chronic ecotoxicity reference value for iron vanadium tetraoxide of 0.400 mg/L, iron vanadium tetraoxide meets in accordance with Table 4.1.0 (b) (i) of Regulation (EC) No 1272/2008 criteria of Category 2 for long-term aquatic hazard.