Hinsberg's reagent is :
The Hinsberg Test -
This test can be used to demonstrate whether an amine is primary, secondary or tertiary.Primary amines react with benzene sulfonyl chloride to form N - substituted benzene sulfonamides.These, in turn, undergo acid-base reactions with the excess potassium hydroxide to form water soluble potasssium salt. Acidification of this solution will cause the water soluble in the next stage, cause the water- insoluble N - substituted sulfonamide to precipitate.
is Hinsberg's reagent,
Hinsberg's reagent is used for the detection of primary, secondary and tertiary amine