FIELD: chemical industry. SUBSTANCE: claimed method comprises preparing p-nitrophenol by nitrosation of phenol in the presence of sulfuric acid and oxidizing p-nitrosophenol with nitric acid. In first nitrosation stage, sulfuric acid concentration is at least 60%, and in second stage, on completion of oxidation reaction, maximum sulfuric acid concentration is 80%. This makes it possible to precipitate p-nitrophenol which is then separated. EFFECT: more efficient preparation method. 16 cl
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