Class 12 Chemistry simulations · Amines

Hinsberg test for amines

Treat a primary, secondary or tertiary amine with benzenesulphonyl chloride and then with KOH.

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What to notice

1°: the sulphonamide dissolves in alkali (acidic N–H); 2°: it is insoluble in alkali; 3°: no reaction.

Key relation

RNH₂ / R₂NH + C₆H₅SO₂Cl → sulphonamide + HCl

Try this

Which amine gives a precipitate that stays undissolved in KOH?

What you can change

• Amine: choose Primary (ethanamine), Secondary (N-ethylethanamine), Tertiary (N,N-diethylethanamine)

More in Amines

• Basic strength of amines

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