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can you add water after removing the ipa / freebase phase, bring it to ph 6 add a non-polar solvent. extract our product, raise the pH to 12-13 and evaporate the non-polar solvent from our freebase

hello, I have a question about converting cocaine paste into cocaine hydrochloride. can someone explain the whole process step by step?

is this the way it is? 5000 ml three-neck, flat-bottomed flasks. placed in an ice bath and placed on a magnetic stirrer. We install a reflux condenser cooled with running water, a dropper with a pressure compensator and a thermometer. In the flask we put 70 gr. NaBH4 dissolved in a...

hello , can you replace cucl2 eg sncl2?

hello, i have one question. after adding the alkali and collecting the top layer, I wanted to evaporate the excess IPA .. unfortunately it was done in a cold room and it took a very long time ... the greenish solution turned orange-red. I performed an extraction with petroleum ether. I...

impurities may be present in the organic phase. when it evaporates to 90 degrees, nothing like this is formed. however, it was created when I evaporated the alcohol for too long due to low ambient temperature very slow increase in temperature after evaporation of alcohol

In my opinion, there are two key moments when this can happen. in the reduction of p2np or in the purification of the free base and evaporation of the alcohol

this happened to me twice. I have a theory: it could be polymers. which may have been caused by too high a temperature during the reaction. what do you think my theory comes from the fact that once I had too high a reaction temperature and the second time I evaporated the alcohol for too...

after phase separation, pour petroleum ether into the organic phase and carry out extractions. this will cut off the dirt and water and move the free base itself. the aqueous phase can also be extracted once with ether. combine the extracts and evaporate at 40 degrees. rinsing with 10% naoh...

only that for me it was so that the whole 300ml was not done in the freezer, and when I poured it on 3x 100ml, it was done in two jars ... in my opinion, the concentration of the product may be too high, so it cannot stay in the form of a liquid. but I can be wrong

gentlemen, why part of the oil crystallized in the freezer? after leaving at room temperature it returns to the liquid

I saw such a 33l on the net. the specification shows that the 20 l flask should fit ...

it is known that laboratory equipment is much better than building your own design from generally available things .. plus there is certainly one in this solution that we do not pay attention to ourselves because these things individually have nothing to do with the equipment for such works.

personally not, but the person whom I advised to assemble the equipment was made of such unusual things on the buttstock 10 i

personally not, but the person whom I advised to assemble the equipment was made of such unusual things on the buttstock 10 i

There are exactly such heaters that even a 20l flask can fit. In my opinion, it is better to set up, for example, two such sets and process 1 kg of p2np at a time than to do it in one stainless steel tank.

in my opinion, this solution is the simplest and the equipment so constructed does not attract attention when completing all the necessary things for this reaction

recommend a wine warmer. there are different capacities. select the correct size of the flask. you pour water, you add ice, e.g. 1: 1 (water: ice) during the first stage, it cools everything nicely. after adding all p2np the ice is gone. you turn on the heating. you set the heater...

no, the point is that if an uninvited guest would like to invade the kitchen, which can be quickly added to the amphous oil so that it would be damaged or damaged in some other way.

no, the point is that if an uninvited guest would like to invade the kitchen, which can be quickly added to the amphous oil so that it would be damaged or damaged in some other way.