Picric acid synthesis : from Phenol

Picric acid is 2,4,6Trinitrophenol
I synthesised it from phenol. you can also try synthesis from aspirin

i first sulfonated phenol and then i nitrated it

Phenol was taken in an erlenmyer flask and concentrated sulfuric acid was added . Then it formed p-hydroxy benzene sulfonic acid. it was then heated for 30 minute to ensure complete sulfonation. It was then subjected to nitration

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