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EC number: 201-766-0
CAS number: 87-69-4
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
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.
The substance has been shown to be readily biodegradable. No further
evaluation of its biodegradability is necessary.
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