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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Sodium lactate fully dissociates into Na+ ions and lactate. The ecotoxicology of sodium lactate can be understood in terms of the ecotoxicology of lactic acid. molar ratio to convert from lactic acid by weight to sodium lactate by weight is 1.24.
lactic acid is practically nontoxic to algae. This is an additional indication that the short-term effects observed for fish and daphnids are of a physical nature, since algae are less sensitive to pH effects than (especially) fish.

Key value for chemical safety assessment

EC50 for freshwater algae:
3 480 800 mg/L
EC10 or NOEC for freshwater algae:
1 900 mg/L
EC10 or NOEC for marine water algae:
2 360

Additional information

Sodium lactate fully dissociates into Na+ ions and lactate. The ecotoxicology of sodium lactate can be understood in terms of the ecotoxicology of lactic acid.

Lactic acid is practically nontoxic to algae. This is an additional indication that the short-term effects observed for fish and daphnids are of a physical nature, since algae are less sensitive to pH effects than (especially) fish.