Phenylacetic acid reacts with sodium hydroxide
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Benzoic acid is dissolved in the solvent phase; after reacting with 7% sodium hydroxide, sodium benzoate is formed and transferred to the aqueous phase. The concentration of sodium benzoate in this aqueous phase cannot be increased any further by adjusting the concentration of sodium hydroxide. The reason for this is not clear; I seek advice from experts. Thank you
This post was last edited by qqgd on 2024-7-4 09:59. The solubility of sodium phenylacetate in water has a limit; when this limit is reached at the given temperature, increasing the concentration of sodium hydroxide will only reduce the solubility of sodium phenylacetate. It is recommended that the original poster check the solubility of sodium phenylacetate in water, or conduct a preliminary test on its solubility before making a decision.
1. Sodium salts have a certain solubility in water. 2. It should be understood that this also has a certain solubility in the solvent. 3. It has a certain distribution coefficient in solvents and water.
It’s saturated; it has reached the upper limit of solubility