Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.14 µg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.205 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.017 µg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.026 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:
0.005 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Additional information

Ecotoxicity data for platinum(IV) substances with a chloro ligand, hexachloroplatinic acid and platinum(iV) chloride, are read across to dipotassium hexachloroplatinate in order to fulfil REACH endpoints and to determine environmental classification.

 

Aquatic PNECs for platinum(IV) substances are derived by pooling all available data for platinum(IV) substances and deriving the PNEC using an assessment factor approach based on the ecotoxicity data for the most toxic platinum(IV) substance as worst case. Sediment and terrestrial PNECs are derived using equilibrium partitioning.

Conclusion on classification

Environmental classification is assessed based on the lowest acute and chronic values from ecotoxicity tests. For this substance, all values are read across from hexachloroplatinic acid. For classification purposes, these values have been expressed as concentrations of dipotassium hexachloroplatinate, converted based on molecular weight. The lowest acute value is a 48-hour EC50 of 0.0205 mg Pt L-1for aquatic invertebrates(mobility) and the lowest chronic value is a 21-day NOEC value of 0.007 mg Pt L-1 for Daphnia, based on reproduction. This results in an EC50 of 0.051 mg dipotassium hexachloroplatinate L-1 and a NOEC of 0.017 mg dipotassium hexachloroplatinate L- 1. A full chronic dataset (fish, Daphnia and algae) is not available for this substance, therefore classification has been assessed based on both the acute and chronic data, with the worst case classification assigned. An environmental classification of Acute Category 1, Chronic Category 1 is assigned to this substance, based on acute data. As the lowest EC50 value is >0.01 ≤ 0.1 an acute M factor of 10 is assigned. A chronic M factor of 10 is also assigned, to match the acute M factor, as the classification has been determined based on acute data.