Why is NaOH added in the extraction experiment of benzoic acid
and triphenylmethane with water and methylene chloride solvent?
Also, in the crystallization of benzoic acid, why is HCL
solution added into the water aqueous solution (benzoic acid and
water solution) and why is sodium sulfate added into the methylene
chloride solution (triphenylmethane and methylene chloride
solution) in the crystallization of triphenylmethane?
A detailed explanation would be highly appreciated. Thank
you!