Question

Describe a simple chemical test to differentiate between n- propyl amine and allyl amine. Describe what you would observe and show the relevant chemical equations

Answer 1

distinguish between (1) allylamine and propylamine

Reaction of allylamine and propylamine with HCl

Allylamine react with two mole of HCl

CH2=CH-CH2-NH2 + 2 HCl \mapsto↦ CH3-CH(Cl)-CH2-NH3+Cl-

Propylamine react with one mole HCl

CH3-CH2-CH2-NH2+ Cl-

(2) tripropylammonium chloride and tetrapropylammonium chloride

Tripropylammonium chloride react with NaOH give acid -base reaction is

Tetra ammonium chloride not give reaction with NaOH