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a/b extraction issues

cletusSamboy

Bluelighter
Joined
Oct 24, 2021
Messages
420
I've tried an acid base extraction technique I found here but I can't get the acid/solvent mixture to freeze for seperation (step 9).

Is this method correct or have I just wasted my meth?

1. Add 20ml water in jar.
2. Add sodium hydroxide solution (mixed in water) to meth/water mix. Add sodium hydroxide to water not water to sodium hydroxide. Do it slowly. Stir.
3. Add 10ml shellite to the solution.
4. Stir solution.
5. Freeze solution. Water will freeze and other liquids can be seperated from water.
6. Pour unfrozen shellite into seperate jar.
7. Keep the sodium/meth water/ice in first glass.
8. Add 10ml 37% hydrochloric acid into jar with shellite.
9. Shake it then freeze to seperate.
10. Pour back into first glass. Use ice cold water to rinse solvent from the ice. Pour into first glass.
11. Let ice in second glass melt and evaporate. Powder is pure meth.
12. Repeat above steps until no more meth appears.

So it won't freeze but I've managed to draw off the solvent from the top of the acid and have left the acid to sit to slow evaporate. It's been nearly a month and nothing is evaporating. My meth should be in the acid but how can I get this out if it won't evaporate?
 
Last edited:
First off, if you haven’t yet remember not to throw anything away.

How are you trying to evaporate your acid? What kind of container? Where is it at? Any fan running on it? Any details welcome.

To increase evaporation you need to increase surface area, increase wind speed with a fan, and possibly increase the temperature to help assist evaporation. A glass Pyrex baking dish with a fan that has a heating option is ideal for this.

-GC
 
It was in a jar left to slowly evaporate at room temp. I binned it and started over again this time without freezing anything and just using an eye dropper to remove solvent. I also diluted the hydrochloric acid from 30% to 15%. I'm letting the water evaporate slowly at room temp in a jar. The original batch turned yellow after adding the acid. This second batch stayed clear probably from diluting it.
 
I used to try this method but the acid takes forever to dry and usually in my opinion had contaminants in it. I got a pump sprayer that was resistant to solvents, removed the inner tube that sucks up the liquid, added damprid (calcium chloride) and then added muriatic acid. This liberates the gas from the water it seems like and you'll always have gas to pump out ready for you, get a seperatory funnel and a stand (it's crucial for an acid base imo) put the tube in and gas slowly. Also when basing it with sodium hydroxide having ph testing strips is also extremely helpful, as to much lye seems like it carries some over in the solvent with it. Charcoal lighter fluid is also a good option for using as a non polar and it's cheap as hell, also I read somewhere that pickling salt should be added in a small amount after you base it with the non polar on top just in case there was any product left over still in the water, becuzse water likes salt more it would liberate any remaining stuff, cheers mate
 
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