Registration Dossier
Registration Dossier
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EC number: 242-522-3 | CAS number: 18718-11-1
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Nickel bis(dihydrogen phosphate) is a highly water soluble inorganic substance similar to Nickel sulphate (EC-No: 232-104-9). As there are only marginal data and studies available for Nickel bis(dihydrogen phosphate) on ecotoxicity, fate and human toxicity the Nickel sulphate data (and data of other Nickel compounds with comparable water solubility and the same effect releasing Nickel ion) are used for read-across.
Studies marked as read-across without mentioning the testing material are performed with Nickel sulphate (NiSO4).
Toxicity to aquatic plants other than algae
Freshwater:
From the database of chronic nickel toxicity to freshwater plants, 6 individual NOEC/L(E)C10 values reported for 2 higher plant species. NOEC/L(E)C10 values range from 8.2 to 75 μg/l for Lemna minor (Antunes, 2007) and 50 to 80 μg/l for Lemna gibba(Klaine and Knuteson, 2003) for a final range of 8.2 to 80 μg/l for the higher plants Lemna gibbaand Lemna minor.
The following table indicates those NOEC or EC10 values of high quality that have been carried forward for the HC5-& PNEC derivation
Key Study (freshwater plant) |
Selected values for the most sensitive endpoints used for derivation of the freshwater HC5 |
||
Species |
Endpoint |
Value (s) (ug/L) |
|
Klain & Knuteson, 2003 |
Lemma gibba |
EC10 |
70 |
Antunes, 2007 |
Lemna minor |
EC10 |
8.2-75.0 |
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