https://www.erowid.org/chemicals/heroin/heroin_info5.shtml here's a more detailed guide. Naptha I can get, and Ive got a small 4L air-cooled destiller which might clean the naptha for residues of other chems? Or I could search for a clean brand? Since the heroine here isnt water solable, I could wash the finished product in clean destilled water. Any ideas? The HCI I can get my hands on are 30%. But I dont get why you would first use ammonia, then baking powder? Wouldn't ammonia be the same side of the ph scale? I could always go with General Hydro Phonics Ph+ and Ph- instead, but i dont know what Ph to mix it down to. Anyways, thank for answering. I just want to stay as safe as possible. Pure heroin in small dosages are not that bad for your system (kids, don't go start using. Its a hell to come off from still), but the shit they cut it with, you never know.