[danago]

Hi.

I am currently doing the pre-lab questions to a lab i will be doing next week. The lab is about the technique of recrystallisation to separate benzoic acid from a mixture with quinine.

One of the questions of the lab is:

"Besides the normal neutral forms for benzoic acid and quinine, will there be any other chemical form(s) present in the dichloromethane solution?"


Im a little unsure as to what this is referring to. Is it referring to the possibility that the benzoic acid could deprotonate to the benzoate form?

[Arctic-Nation]

Well, when you have an acid and a base together in solution...

[danago]

Well, when you have an acid and a base together in solution...

Oh, are you talking about quinine acting as a base via the protonation of the lone pairs on the nitrogen groups?

[clbk]

 There will be some salts?
  No, For the activity of benzoic acid and quinine is not high.