Registration Dossier
Registration Dossier
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EC number: 236-599-2 | CAS number: 13446-49-6
Endpoint summary
Administrative data
Description of key information
Acute data:
For fish, the lowest reliable data point for ammonium molybdate was put forward for hazard assessment purposes:
- 96h-LC50of 237 mg Mo/L for the fishO. mykiss(HRC, 1994); Mo-salt was (NH4)2Mo2O7,
For invertebrates (test organism:Daphnia magna) the lowest reliable data points for ammonium molybdatewas put forward for hazard assessment purposes:
- 48h-LC50of 79 mg Mo/L for the cladoceranD. magna(HRC, 1994). This value cooresponds to a EC50 (48 -h) of approx 221 mg/L for dipotassium tetraoxomolybdate. Mo-salt was(NH4)2Mo2O7
No algal toxicity data were generated with ammonium molybdate. Therefore read-across from reliable data that were generated with sodium molybdate were considered for this trophic level. For the most sensitive strain ofP. subcapitatathat was used in reliable study reports, 4 acute data points were availabe. The geometric mean of those 4 data points was 333.1 mg/L. This value is considered as a reliable acute algal toxicity reference value for hazard assessment purposes (e.g., classification).
Additional information
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