What I want to know is, if you now have the product of your A/B, an aqueous salt for example. Is it possible to undo it, without the corresponding acid available, the one used in the A/B?
By removal of the basing agent somehow perhaps? Or is this out of the question? Just for the sake of argument, let's say that the aqueous salt product is psilocybine HCl
The 'basing agent' for the HCl is psilocybine; don't wanna dump that down the drain.
Here... A/B walkthrough. The important thing to remember are 'alkaloids are bases.' I'll use 'Sp' for 'whatever organic acid' - it's short for 'spooge.'
...and, in case you don't know, Na is sodium, NaOH is lye, HCl is hydrochloric acid, NaCl is table salt.
Acid phase, aqueous extract -
PsilocybinSp + HCl -> PsilocybinHCl + Sp
(both forms of psilocybin are aqueous salts at this point)
Base phase, transfer to NP)
PsiloHCl + NaOH -> Psilo freebase +NaCl
(salt stays in the water, freebase drops out of your water, into either NP or filter, depending on how wasteful you like to be)
Gassing out -
Psilo freebase + HCl gas -> PsiloHCl
(since the aqueous salt isn't soluable in your non-polar, crystals form).
This leaves us where your question is - i.e. 'how to make crack.'
...as you've probably guessed by now, all you have to do is add a stronger base than your alkaloid (NaOH again!), and the acid will go where it's more wanted.
PsiloHCl + NaOH -> Psilo freebase + NaCl
...a jar of salt water, with psilocybin dust on the bottom.
Any questions?