I'm new here so sorry if there is a similar post.
I have trouble understanding a extraction lab that we had a couple of days ago.
We've got a solution of 2-chlorophenol, benzoic acid and benzophenon in dichloromethane.
In step 1 we extract the solution with NaHCO3 (B)
. The TLC showed that only benzophenon and 2-chlorophenol was present in the organic phase (is it called that in english?).
In step 2 the water phase of (B)
was washed with dichloromethane twice. On the TLC of the organic phase it looked like only 2-chlorophenol was left in this phase.
In step 3 we put some HCl in the water phase+washed it again with dichloromethane and the TLC showed that we had separated benzoic acid in the organic phase!
The thing i don't understand are the steps of getting the benzoic acid. Was it really 2-chlorophenol i saw in step 2?
Sorry if it looks messy, english is not my first language (duh