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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.045 µg/L
Assessment factor:
50
Extrapolation method:
assessment factor

Marine water

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

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.274 mg/kg sediment dw
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.027 mg/kg sediment dw
Assessment factor:
1 000
Extrapolation method:
assessment factor

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.02 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

The available data on tetraamminepalladium(II) hydrogen carbonate is used for classification purposes.

For risk assessment purposes, many sites produce and use different palladium substances, and when monitoring site emissions only the concentration of palladium is monitored. For this reason, although a substance-specific approach is followed for the environmental classification, a single PNEC is derived covering all palladium substances, for each environmental compartment. This allows a site to conduct a risk assessment for total emissions of palladium, rather than attempting to link a proportion of the site emissions to each palladium substance that is used.

Tetraamminepalladium(II) hydrogen carbonate is a member of the 'Palladium and inorganic palladium substances'.

The read-across justification report and PNEC derivation report are attached in IUCLID section 13.2.

Conclusion on classification

Environmental classification is assessed based on the lowest acute and chronic values from ecotoxicity tests. For tetraamminepalladium(II) dihydrogen carbonate, the lowest acute value is an EC50 of 0.078 mg/L (0.027 mg Pd/L) for algae (growth rate). The only chronic data available for tetraamminepalladium(II) dihydrogen carbonate is an algal NOEC, therefore chronic classification is determined based on the acute data. Based on this result, an environmental classification of 'Aquatic Acute Category 1' and 'Aquatic Chronic Category 1' is assigned to this substance, with an acute M factor of 10 and a chronic M factor of 10.