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Calcium lactate fully dissociates into Ca2+ ions and lactate. The ecotoxicological effects of lactate in the environment can be understood in terms of the ecotoxicological effect of lactic acid. Calcium ions - i.e. simple calcium salts, are non-toxic.

Lactic acid is readily biodegradable (see 5.2.1) and is a ubiquitous and essential molecule of life. It will not adsorb to soil (see 5.4.1). As such there is no relevance in the hazard assessment for terrestrial organisms.