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EC number: 212-769-1
CAS number: 868-14-4
Tartaric acid was not found significant toxic to neither aquatic
invertebrates nor aquatic algae. Furthermore, data predicted by valid
QSAR models allow to estimate its toxicity to fish and aquatic
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 aquatic toxicity of tartaric acid
salts (i.e. monosodium, monopotassium, sodium potassium, sodium,
potassium and calcium tartrate) may be assessed using data specific for
tartaric acid. Therefore, also the tartaric acid salts are deemed to be
non-toxic to aquatic environment.
According to Directive 67/548/EEC and to Regulation (EC) n. 1272/2008,
the substances should not be classified for the aquatic toxicity because
the data currently available are judged as "conclusive but not
sufficient for the classification".
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