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BZP..Urgent!

Put the freebase liquid onto a piece of glass or something and let it evaporate, you'll be left with BZP bicarbonate. I believe this is less potent than BZP HCl.
I haven't tried this myself, but that's what I hear is the best way to do it. You could theoretically take the BZP freebase straight, but I think there's some ammonia in there too, might be nasty.
 
this is from erowid's 'bzp vault' in the 'basics' page:
"> assuming a fictional character purchased bzp (as 55 gm of a liquid), what
> would be the best way to partake, could a non-chemist convert this into a
> crystalline form?
This is easy, and can be done by anybody.
Place 20 grams of liquid benzylpiperazine in a 500 ml glass beaker
(no plastic!) and add 100 ml 99% anhydrous isopropylalcohol or methanol,
and give it a good stir. Next add 15 ml of hardware store hydrochloric
acid (muriatic acid) of 30-31% strength, and stir the solution again until
it is thorougly mixed. Now, while stirring, add 250 ml of acetone in 50 ml
portions. Now white benzylpiperazine hydrochloride crystals will form in
the solution. Let the mixture stand in the refrigerator for an hour, break
up any lumps of crystals that may have formed, and filter them off with
a coffee filter and let the crystals completely dry in the air."
 
The 55g of freebase is much less expensive than the HCl. And the potency is less but doesn't seem by that much...150 mg should be fine?
I'd rather just evaporate it and use the bicarbonate than go through converting it to a salt
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Xylo... what you said is very strange.
by "55 g of BZP freebase" i assume that you mean 55 g of roughly technical grade benzylpiperazine. somewhere in the synthesis it may have been neutralized with ammonia or sodium bicarbonate, but those won't be present in the product. if you let it evaporate, the vapor will be BZP and you will be left with nothing (except maybe some residue).
BZP freebase is in fact a "yellow or colorless oil" at room temperature, so.. letting it evaporate would be useless.
i like the "anyone can do this" procedure for making the HCl salt. i'm not sure what they mean by "99% anhydrous".. does that mean "anhydrous, but since it's never going to be 100% anyway i'll just say 99%", or does it mean "99% anhydrous, 1% water", or "99% anhydrous solvent, 1% something else other than water"? at any rate, the average "anyone" would have a lot of trouble getting anhydrous solvents, which are lab-grade chemicals that require special storage.
also, this is a recrystallization and would be better performed with:
a) the use of HCl gas rather than ridiculously impure 21° Baumé muriatic acid, which is obviously far more difficult,
b) the dissolving step done using minimal, slightly warm solvent, and slowly cooling the mixture once crystals begin to form, eventually in an ice bath.
BZP must be *damned* polar to not be soluble in acetone or methanol.. but i can't find anything to contest that.
 
Ok that 55 grams he's talking about is BZP in ammonia solution. I think all I did is convert to hcl, then filter...
 
Roches, xylo is pretty much correct except for the fact that it does not "evaporate"...rather it forms the carbonate salt. The benzylpiperazine does NOT evaporate away so leaving it out does not leave you with nothing...you will be left with a white powdery substance, not unlike that of cocaine in looks and texture.
As for the potency, the bzp hcl and bzp carbonate only differ in potency by the difference in the molecular weights...this difference is rather small.
Black Death, the 55g BZP that you speak of is NOT in an ammonia solution! The BZP freebase is pure and not in any solution at all.
 
Not true...I have received it several times...we all know the 3 letter source...it is in ammonia...Even said it on the bottle...
 
Roches, wondered that myself on occasion, see I've never actually had BZP freebase myself or anything, this is only what I've read.
I suppose it comes from CO2 in the air, unless you can come up with a better theory :P
 
Roches, I'm not certain of the exact chemistry in question. As with xylo, this is what I've been told before but I have obtained bzp base and tested the theory, and, indeed, in a very short time period, the liquid forms a white powder which is bioactive on roughly the same levels as the HCl salt. Putting two and two together, I am assuming that what I was told is correct and that it is the carbonate salt that is formed. As xylo said, the carbonate is likely formed from the carbon dioxide in the atmosphere reacting with the free base.
Black Death, I'll have more info regarding the ammonia content (or lack thereof) in a couple days.
 
Roches, I'm not certain of the exact chemistry in question. As with xylo, this is what I've been told before but I have obtained bzp base and tested the theory, and, indeed, in a very short time period, the liquid forms a white powder which is bioactive on roughly the same levels as the HCl salt. Putting two and two together, I am assuming that what I was told is correct and that it is the carbonate salt that is formed. As xylo said, the carbonate is likely formed from the carbon dioxide in the atmosphere reacting with the free base.
Black Death, I'll have more info regarding the ammonia content (or lack thereof) in a couple days. BTW, Black Death, are/were you a member of the DMTWorld board as well?
 
The freebase is corrosive from what I rememeber as well.
I was a member of DMT world, Now I'm an Admin over at http://crystalninjas.net . Were you on DMT World back about two years ago? It was a very tight circle of friends, Swim traded alot of stuff on there.
 
bzp liquid is extreamly caustic. i would highly suggest putting forward the extra cash to buy bzp hcl. when you look at the stuff you have to do to convert it and run the risk of messing up and loosing all your product its just not worth it.
 
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