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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The acute toxicity of dipotassium hexafluorotitanate to Daphnia magna was tested according to OECD 203; an EC50 of 48.2 mg/L  was derived.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
48.2 mg/L

Additional information

Dipotassium hexafluorotitanate

The acute toxicity of dipotassium hexafluorotitanate to Daphnia magna was tested according to OECD 202. An EC50 of 48.2 mg/L was derived indicating a similar potential for acute toxicity to aquatic invertebrates (or a lack thereof) as other flouride substances (see below).

Potassium fluoride

Camargo & Tarazona (1991) report that benthic larvae are sensitive to the concentration of fluoride, with EC50 values ranging from 26 -48 mg F/L (actual concentration); however the study was performed in soft water. The EU RAR reviews and summarises the available data on short-term toxicity to aquatic invertebrates. The reported EC50 values for Daphnia sp. range from 97-352 mg F/L and are based on nominal concentrations; EC50 values of 10.5 -39 mg F/L are reported for marine invertebrates. The ICD summarises the available data on the short-term toxicity of sodium fluoride to aquatic invertebrates and reports EC50 values of 109 -340 mg F/L; EC50 values of 30 -500 mg F/L are reported for marine invertebrates.