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Hi, Can anyone show an good and efficient setup for steam distillation. I have only just started to explore this area and simply used water in a flask with the only floating on top. This seems to work, but it is very slow, and there are a lot of questions which I haven`t found answer to: 1. What...

Hi Patton, your reply suprised me, because I thought you`d recommend a diaphragm pump, but it also reminded me of a problem why I left the idea of using water jet pumps. I tried to build several different versions following the Nile Red video, but when the pump was really strong, I got suckback...

G.Patton is correct. He basically uses the same method at the end of his procedure, which is used in this topic, he precipitates the D-Amphetamine with excess d-tartaric (aka L-(+)-tartaric acid or the natural form) in the end. This way it forms D-Amphetamine-d-bitartrate aka...

Cool. I will wait then and let the experts find out the details/pitfalls. Thanks Patton

I don`t take it as questioning :). We are here to help each other with information. As I haven`t tried this conversion (neither from racemic nor from D-amphetamine) I can only rely on Rhodium`s notes on https://www.erowid.org/archive/rhodium/chemistry/amphetamine.methylation.html I would just...

This is essentially the same method as in the original post using CuCl2. Can any of the pros comment whether CuSO4 is inferior or identical (equally effective) in this reduction? thank you

I have done it using a stir bar, the reaction nicely scales down. Just be careful before adding the CuCl2. This should be done in as short time as possible but keeping the temperature under 80C so prepare a reflux (even a splash head if you have one) and an ice bath. The reflux should also have...

Hi Patton, sorry I meant Mercury Nitrate Hg(NO3)2, but my question was answered. I haven`t tried HgCl2 and I thought there could be a reason why people use it despite the extra step needed to make it from the nitrate salt. Anyway, thank you for your answer.

Hi Patton, is there any advatage of using HgCl2 instead of HgNO3? The former is more water soluble, and can be made from the nitrate salt quite easily. That said, I don`t like to mess around with such toxic substances if there is no clear advantage.

H How true.

If you use D Amph to start with you get D meth. I was planning to try this synthesis, and I plan to use racemic amph and then resolve the meth just in case something goes wrong with a route I have never tried, then D amph would be wasted... Is there anyone who has actually tried this synthesis...

When you switch the tartaric acid isomers, then everything is simply the other way round. The amph isomer which was in the organic phase will be in the water and the salt (water soluble) will be in the organic. I know some people use the L tartaric acid (despite more difficult to get) because...

Has anyone seen a report using NaBH4 instead of Al/Hg to reduce the Imine in this synthesis route? Is there any problem with changing the reducing agent? Perhaps not compatible with the formaldehyde?

I think this has got to do with the pKa of the amphetamine base, which is around 9-9.5 if I remember well.

Thank you Patton, will try it like this then.

This is a very good question. My guess would be that 40% refers to the salt, so 40g of Methylamine HCl dissolved in enough water to make the final solution 100ml? Then during the synthesis routes there is always concentrated NaOH added so in the reaction MeAmine will react as freebase. I`m...

Thank you, will look at the videos and try it. Special thanks for the article about this method, it is really great to see real science establihing the correct proportions.

Does anyone know the website the author mentions at the end for getting quality ingredients? It is quite hard to understand from the video.

Hi Patton, I have tried to download this video, but it seems to be the benzaldehyde distillation one, and not the synthesis from benzyl alcohol as the title suggests.

How to obtain 90% Nitric acid? I thought 68% was fuming nitric acid.