Properties of uses of resorcinol : It is a colourless crystalline solid, melting points 110°C. it is affected on exposure by light and air. It is soluble in alcohol, water and ether. It indicates tautomerism. Its aqueous solution gives violet colour with FeCl3. It reduces Fehling's solution and Tollen's reagent on warming.
With bromine water, it produces a crystalline precipitate, 2, 4, 6-tribromoresorcinol.
On nitration, it generates 2, 4, 6-trinitro-1, 3-dihydroxybenzene.
It condenses with phthalic anhydride and generates fluorescein.
With nitrous acid, it forms 2, 4-dinitrosoresorcinol
Resorcinol behaves as a tautomeric compound. This is given by the concept that it forms a dioxime and a bisulphite derivative.
Uses
(i) It is used as antiseptic and for creating dyes.
(ii) It is also used in the medicine of eczema. 2, 4, 6-trinitroresorcinol is needed as an explosive.
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