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Acid-Base Extraction of Salicylic Acid by ScribdTranslations is a document available to read on EtoBox.
The practice involved the separation of a mixture of salicylic acid and phenanthrene through acid-base extraction. NaOH was added to form the sodium salt of the acid, dissolving it in water while phenanthrene remained insoluble. Subsequently, HCl was added to precipitate the salicylic acid. After two vacuum filtrations, pure phenanthrene was obtained with a yield of 89.62% and pure salicylic acid with a yield of 48.5%.
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