Muri (hcl aq) is being dripped onto sulferic acid, the gas produced is ran though a trap, made anydrous, then gassed into 99% ipa, where it is absorbed.
Why anyone would bother making the gas anhydrous when 99% ipa 1% water is the end solvent.. is besides me. Maybe for demonstrational purposes? I would add some dried epsoms to the trap.
This is for major gassage I would think. If your looking to gas a few ounces of suspected product, then following this writeup may be overkill. You can just bubble Muriatic, releasing Hcl gas, into another flask filled with a drying agent, then from that flask into your freebase solution. Being that you were spelling Hc
L with HC
i, I think the smaller version will suit your needs.
& I'm, somethin of a phenom, 1 puff of da cron, I'm un-stopable.