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Here's the key to the nomenclature: d-tartaric acid = L-(+)-tartaric acid = R,R-(+)-tartaric acid = dextrotartaric acid = cheap, naturally occurring = will precipitate L-amphetamine tartrate l-tartaric acid = D-(-)-tartaric acid = S,S-(-)-tartaric acid = levotartaric acid = expensive...

Wait ... so you used RACEMIC tartrate to resolve racemic meth? I guess you relied on the solubility differences between the tartrate salts to precipitate d-meth-l-tartrate but not l-meth-d-tartrate. Did you do any quantification of the result? Polarimeter?

Beware of the lacrymator (tear-gassy) effect of P2NP in solution. Don't dry it in the oven. It will be a bad day. Also, it can be washed with a sodium bisulphite solution to remove any remaining benzaldehyde.

I don't know why this video was done on such a large scale. if you do this rx for the first time, please don't do 250 g P2NP! Do something like 5 and see how it goes. It can actually be a bitch to get this one to work, even for experienced clandestine chemists. Do trial runs. Also, why are you...

Don't cut it. It's bad business in the long run. Give people a good product and be proud of yourself instead of being an asshole.

You are referring to lisdexamphetaminedimesylate, Elvanse. It's just D-amphetamine salted with mesylate and combined with an amino acid to prolong release. lisDEXAMPHETAMINEdimesylate. Everything in that molecule name without capital letters are being cleaved off by enzymes in the blood stream...

Yes, you can use copper sulphate. I have. it worked.

I dont remember the exact melting point of amph sulfate now, but it's well above 90 C, I think its closer to or slightly above 200 C, and just below the degradation temp. Yellow hue might also be because of P2P impurity, does your yellow salt also smell flowery? Acetone wash or recryst will...

Beautiful! But ... if you distill off the IPA you will effectively steam distill off your product with it, right? So you'll need to acidify your IPA/product mix before distillation. That way your product will not be volatile. Don't do what I did once though: under certain conditions acidifying...

The "pleasant smell" is the flowery smell of P2NP reduced to P2P, in other words: impurities. Many users connect this smell with amphetamine, even extra strong amphetamine, but it's really just impure leftovers of side reactions. Redspect to ImOut for doing a proper job!

And yet you just said borates build up in the bottom of the flask. If they do so enough, of course they will disturb the stirring? Overhead stirring it is for me. I already have the setup. Overall, I think vicious agitation is key to the success of this reax. However you choose or can.

Yup, like the man said, it's borate crystals. Also, if you leave the rm cooling overnight for some reason, ice-like boric crystals will aggregate at the bottom. Like a small glacier. I got this on a massive scale at my first run and really wondered what i was looking at. Tested, and drew the...

Well, I feel I know pretty well what's going on with my reaction :). And sorry, I don't have any pics at this time. What I DON'T know is if you can steam distill freebase without using vaccum, or if you will loose product from the high temp? Do you know?

I just finished an amph synth and now I need to steam distill the freebase. and then my ´vacuum machine breaks down. The *****er. I never steam distilled a-oil with nnormal pressure before, always assumed 100 C could damage it? So do I need to wait for a new pump? (*****eti*****eti*****eti)

No, you are partly right. I had to quench the reaction like I wrote, so there were still s´reactions going on. The oxide layer was not on top, it was a middle layer with the major part consisting of colourless product layer. But the thing was, I had it in a reagent flask, and since bubbling was...

after several experiments I can say that any of these reaciotns involving more than 4-5 g:s og P2NP will require overhead stirring. What happens is that when water gets consumed by reduciton nad iPA gets boiled off, the borohhydride starts to reciitate at th ebotto of the flask. Eventually it...

Sorry, what do you mean? When and how does the borohydride precipitate? I use magnetic stirring for my attempts, and it works fine.

It's best to boil off most of the IPA under acuum just to make drying of the salt easier later. Just put the system under vacuum, attach a condenser and collect your IPA for the next batch in a separate container.

Yes, of course you're right. I did an acetone wash on a minor part of the (terrible) yield and the floral smell was actually essentially gone just by that. God they must have been lazy and sloppy in the 90's. Also, what do you mean with "energy tested"?

Oh, one more thing: if you have a speed like this, how much cleaning should it go through to be deemed somewhat safe for I.V use? (I mean except for the normal side effects like loosing your teeth with your mind and relations, and end up performing fellatio for money on street corners) And what...