How do you separate aniline and benzoic acid?

Aniline dissolves in the acid solution forming the salt aniline hydrochloride. The aqueous layer is removed and treated with sodium hydroxide to get free aniline. After the removal of the acidic benzoic acid and phenol and the basic aniline, only the neutral biphenyl will be left in the separating funnel.Click to see full answer. Just so, how would you separate a mixture of benzoic acid?Heat the mixture to the boiling point (stop heating when boiling is observed), and stir the mixture with a stirring rod to make sure that all soluble material is dissolved. At the boiling point temperature, all benzoic acid and sodium chloride should be in solution. Thus, they have been separated from sand. why is it possible to separate naphthalene and benzoic acid? Answer and Explanation: Naphthalene and benzoic acid have similar physical properties (e.g. lack of solubility in water), they both can sublimate too, therefore physical Hereof, how would you separate a mixture of benzoic acid phenol and aniline? Just dissolve all three compounds in an organic solvent which not miscible with water (those two I have mentioned) in separatory funnel. Use aqueous sodium bicarbonate first to extract. If you use sodium hydroxide, both phenol and benzoic acid will be extracted as both can react with hydroxide.How would you separate benzoic acid from benzaldehyde?Benzoic acid and benzaldehyde are difficult to separate by recrystallization but can be easily purified by dissolving both in methylene chloride, filtering to remove the carbon and finally extracting out the carboxylic acid with cold 5% NaOH solution.