FORMALDEHYDE SOLUTION

FORMALDEHYDE SOLUTION




Formaldehyde solution is a colourless liquid , odur is characteristic , pungent and irritating . It is miscible with water and alcohol .



Preparation


Treatment of dilute formaldehyde solution ( 1ml) with a 1% solution of phenylhydrazine hydrochloride   ( 2ml ) , dilute potassium hexacyanoferrate solution ( 1ml ) and hydrochloric acid ( 5ml ) forms brilliant red colour .

Uses


Formaldehyde solution is used in the treatment of warts .



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