Acetate ions gives deep red colour ppt on reaction with netural ferric chloride solution. 6CH3COO−+3Fe3++2H2O⟶[Fe3(OH)2(CH3‌COO)6]++2H+ [Fe3(OH)2(CH3‌COO)6]+4H2O⟶3[Fe(OH)2(CH3‌COO)]+3CH3‌COOH)2(CH3‌COO)6]++2H+ Phenol reacts with freshly prepared ferric chloride solution and gives violet colour complex. 6C6H5‌OH+FeCl3⟶‌[Fe