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Physical & Chemical properties

Partition coefficient

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Description of key information

Tartaric acid and its salts are hydrophilic (i.e. they show high polarity).

Key value for chemical safety assessment

Additional information

A collection of the partition coefficients was performed for tartaric acid and its salts (i.e. monosodium, monopotassium, sodium potassium, sodium, potassium and calcium tartrate). As result, some values specifically referred to tartaric acid were found. These values were similar and support the hydrophilicity of the substance (i.e. all LogKow were < 0). Since the partition coefficient of tartaric acid is extremely low and taking into account the chemistry of its salts (i.e. their water solubility), it is believed that also the tartaric acid salts should not behave differently.