You misread, I bought another pump, quite strong too (At least for the kind of work we do...Pulls something likes 29''hg)... A bit too noisy for my situation though. It also can't runs for more than 1.5-2 hours...After that it's like an internal fuse stops everything and I need to let the damn pump cools for 30min
Nothing pissing me off more than having that piece of shit suddendly stops when the ketone is coming over nicely....Is a water aspirator that strong? If so, I will seriously looks into buying one. I can't work too late at night with that damn pump...I suppose water pressure variation isn't that bad anyways...Don't worry, I don't heat ketone that high anymore
Let's just say that back when I started, there was nothing that was going to stop me from getting the final amine...You should have seen my ketone distillation back then
... Always had the fire extinguisher near me...Was probably borderline dangerous but I sure wasn't endangering anybody else
As for nitroethane, I was joking, I have no idea where to get it. I just remember reading somewhere that americans where crossing the border to buy it in Canada so I figured out there is something going on here.
As for nitromethane, only times I needed it, I got it from RC fuel, but somebody told me you can buy it at a shop where they fix dirtbikes/atv/etc. ..... Since you mentions it's almost impossible for you to get methanol, I suppose you're in Europe. While I have the chance to ask lol, what the hell is the deal with that? How comes it's so unavailable? I can walk into any hardware store around and buy it in 4 liters bottles for 10$
No idea where I can get denatured Ethanol though....Never checked though
As for others methods for getting around distillation, I've never heard about anything. Would be too good to be true. Would be nice if the bisulfite adduct could purity it enough...The wacker oxidation is a really messy reaction, especially when using p-benzo as the oxidant (Never tried any variation though)...Anyway, I've used impure ketone in the past, and yields are fucking shitty...It's already enough Work, might as well do it correctly
I'm going to have to do this step in the next fews days, and this discussion is not making me looking forward to doing it...Can't wait to get more MDA though
Oh and...fuck DCM altogether...That's not a solvent to use without a fume hood. Only chemical that made me ill was DCM. Anyway, I hate when my damn separatory funnel stopcock leak and I don't want my plug to start flying across the room If I lose attention for a second...This reming me this damn solvent screwed up my lab session at school in instrumental chemistry
Oh, and even worse, even If I wanted to use DCM, I would need to distill it from the shitty gooey paint stripper...No thanks
This solvent has absolutly ZERO
advantages for me.