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Environmental fate & pathways

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Several studies are available in the scientific literature which investigated the biodegradation in water of tartaric acid and sodium tartrate. Almost all results support the ready biodegradation of these substances.

Based on the assumption that in dilute aqueous conditions of defined pH, a salt will be fully dissociated and will behave no differently to the parent acid at identical concentration of the particular speciated form present, the biodegradability of tartaric acid salts (i.e. monosodium, monopotassium, sodium potassium, sodium, potassium and calcium tartrate) may be assessed using also data specific for tartaric acid.

Overall, tartaric acid and its salts are deemed to be readily biodegradable in water.