Pure PCP is not that hard to make (
cough cough grignard), also its analogs (3-MeO-PCP, 3-MeO-PCE, etc) are sold in pure forms.
Even if you suspect your PCP has impurities,
SWGDRUG has a method for purifying crude PCP, some sort of ion-pair extraction, relies on the fact that PCP.HCl is soluble in dichloromethane/chloroform but most other HCl salts are not. It works really well actually (purity >90% from a crude rxn mix, note you can use chloroform instead of DCM if you prefer)
1. Prepare aqueous solution of PCP salt (if using freebase dissolve in 5% H
2SO
4), wash with ether/hexanes (contains organic neutrals)
2. Basify to pH 11+ with e.g. sodium/potassium carbonate or sodium/potassium hydroxide, extract with DCM, discard water (contains water soluble neutrals)
3. Add 5% aq H
2SO
4, shake, discard DCM (water has 2PCP.H
2SO
4 which is non-soluble in DCM)
4. Add some NaCl (pref. concentrated brine solution), mix well, extract repeatedly (3-5x) with DCM (
equilibrium rxn: NaCl + H
2SO
4 -> 2HCl + Na
2SO
4). Layers may take a while to separate, adjust density of water layer by adding more water as needed - brine will bring the density CLOSER to DCM and will make layers harder to separate.
Note that the DCM, and not the water, contains PCP.HCl at this stage. Separate the DCM and save it, water contains aqueous salts of non-PCP amines.
5. Dry DCM, evaporate, weigh resulting purified PCP.HCl
6. Reconstitute to e.g. between 10mg/mL and 50 mg/mL with distilled water, filter, adjust pH to ~7.
Note that PCP may be physiologically safer than ketamine, especially in regards to bladder concerns, but
PCP is not immobilizing the same way ketamine is and can lead to fugue states or other reckless behaviour even in an experienced user.
It is imperative to not use more than threshold doses of PCP or its close friends if you are in periods of mental or physiological stress, grief, or otherwise negative mindsets. It is also strongly advisable to have a trip-sitter on higher doses, especially if you are going to be doing it and going outside in public. If you ignore one or both of these rules you run the very real risk of hurting yourself or others, possible legal trouble, and/or making a fool of yourself.
It is Not Any Fun to spend most of your trip in police cars and holding cells, I can tell you that much.