>One way, in my opinion the easist and safest way, is to add...
Nope. Just spread the shit out on a dish and let it react with CO2 in the air to form the carbonate salt.
You would already know this if you'd spent about 30 seconds using the search engine...
Refer to these threads:
Post 108538 (https://www.thevespiary.org/talk/index.php?topic=11763.msg10853800#msg10853800)
(dormouse: "1-Benzylpiperazine.HCl from freebase? -ReFlux", Novel Discourse)
and
Post 84243 (missing)
(ahura12: "BZP carbonate vs. hydrochloride", General Discourse)
\\|//
ô¿ô -- Anger management? Fuck that!
\O/
'''