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yes, unfortunately it's an exothermic reaction and if you cool it while you adding the p2np it won't work. Patience is key with this. it's also why it takes 30 minutes once the p2np is completely added for the reaction to finish.

It would affect the yield, sodium borohydride creates an exothermic reaction and that's how it works. You could try to keep it steady at around 60c while you add the p2np but it could be quite hard.

If you chill a reaction once the sodium is present it affects the efficiency of the sodium borohydride

If you want to cool it after you add the sodium borohydride do not, it reduces its efficiency.

Almost all exothermic reactions are delayed and build up. You have to be very careful and patient

Oh wow, you can tell a chemical compound just by looking at it and here we are fools trying to figure it out by boiling points, melting points etc.

Ah it's because i read on the other pmk thread that uses the exact same method as you do except at the end it does bicarb washes and a water wash and no dcm extraction. So I'm just looking at all the methods to try to understand this rxn better

I read on another pmk thread that the guy only does bicarb washes and then vacuum distills the remaining water without doing a dcm extraction, what's your opinion on that?

How so, higher yield or what, how do you determine the purity?

Yup, 25/125 is 20%.

20% NaOH (W/V), means 20 grams of NaOH solids, dissolved in distilled water until you have 100mL of aqueous solution. Do this in beaker slowly, and drip water until it reaches exactly 100 mL mark. 20% NaOH(W/W) means 20 grams of NaOH solids plus 80 grams of distilled water, making up 100 grams...

I thought 25% solution means 250 grams NaOH in 750ml of water no? I read some say 25 grams in 75 ml and some say 25 grams in 100ml.

Glass reactors are the best option

No hell no, hcl will eat that shit right up.

Yes but boiling point of formic acid boiling point is 100c and thats for the first step. So ill assume second step is 150-170c as well.

No way it was a lab, making lsd is super complicated plus that place doesn't look like it was setup for a lab.

At what temperature do you reflux once you add the hcl?

I suspect it was not a lab but a repackaging and shipping center.

Yes you are very very right. let the solution cool down after refluxing with naoh and only then add the hcl and heat it up again to 80c.

Why are you heating it? Best way to do it is to let it separate then do a couple of bicarb washes and afterwards a gentle vacuum distillation to remove the trace amounts of water And yes, if it is too dark then it will affect the final color of the product but to get it too dark you basically...