Sodium lactate

Long-term toxicity to aquatic invertebrates

Link to relevant study record(s)

Reference

Endpoint:

long-term toxicity to aquatic invertebrates

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Description of key information

No long-term toxicity data are available for the toxicity of Sodium lactate to aquatic invertebrates. Sodium lactate fully dissociates into Na+ ions and lactate. The ecotoxicology of Sodium lactate can be understood in terms of the ecotoxicology of sodium salts and lactic acid. According to REACH Annex IX, column 2, long-term toxicity testing shall be considered if the chemical safety assessment according to Annex I indicates the need to investigate further the effects on aquatic organisms. No adverse effects of calcium chloride have been observed in the acute aquatic toxicity studies with fish, daphnids and algae at the highest recommended test concentrations of 100 mg/L. In addition, no adverse effects of sodium lactate were observed in a short-term toxicity test with the fresh-water crustacean Daphnia magna at concentration of up to 6000 mg/L.

Since any effects by L-(+)-lactic acid observed in short-term aquatic toxicity tests can be attributed to pH shifts it can be concluded that the substance does not exert significant effects on environmental organisms that result in identification of a hazard. Accordingly, the chemical safety assessment does not indicate the need to further investigate environmental toxicity by means of long-term studies. Therefore, following the criteria of REACH Annex IX, point 9.1.6, column 2 a long-term toxicity study in aquatic invertebrates is not considered to be required.