Registration Dossier
Registration Dossier
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EC number: 700-282-1 | CAS number: 66922-99-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Phosphoric acid, potassium salt (2:3), dihydrate is not acutely harmful to algae
Key value for chemical safety assessment
Additional information
The toxicity of phosphoric acid, potassium salt (2:3), dihydrate (CAS No. 66922-99-4) to algae was investigated in one study by Vryenhoef and Mullee (2010). The test was performed according to OECD Guideline 201, Freshwater Algae and Cyanobacteria, Growth Inhibition Test (2006), under GLP conditions. Desmodesmus subspicatus was exposed for 72 hours to the test substance, and analytical verification of the test concentration was performed. No effects on algae yield or growth rate were reported at the end of the experiment, leading to an EC50 above 100 mg/L and a NOEC ≥ 100 mg/L.
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