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Acetone extraction - problem for lungs?

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Greenlighter
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Aug 10, 2009
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14g weed was immersed in 500ml acetone and left for 2 weeks.

The acetone was drained off, and allowed to evaporate. Some water was present in the liquid, it was also allowed to evaporate.

After a week of drying, approximately 1g of thick, sticky, black stuff remained. It has the consistency of tar, and it must be at least 70% THC. It is the stickiest substance I have ever seen. If you get it on something, it is very difficult to get off.


Usage:
get the equivalent of a 2x2x2mm piece on the end of a knife, then dip it in ground weed. the weed will stick to it like no tomorrow. Try and get it off into your cone, using the weed as a buffer between the amazingly sticky tar and your finger.

Smoke it, and it's like the cone that never dies. If you smoke it like you would your regular cone, your lungs will be full and the cone still smoking. What happens is that the weed burns, and leaves an ash structure that supports the 'resin' while it boils off pure THC vapor. This can be very harsh on your lungs.

Which brings me to my question. I did this procedure about 4 months ago, so it must be well and truly dry by now. However when I smoke it I get the feeling that i'm smoking acetone, the smoke is just so harsh. Is that accurate, or am I just interpreting the harsh quality of the high-thc smoke incorrectly?

Similar stories welcome, i'm the only one i know who has done this.
 
since your resin is black, i'm going to say that your acetone extraction pulled a TON of chlorophyll and sugars out along with your thc. this is why people favor butane honey oil, as butane is much more selective than acetone. there are various ways to clean your extraction, but here's one i know will work...

if you have experience with aqueous/organic phase extractions, you can:
dissolve your resin in a minimum of warm heptane
decant off the black crap that doesn't dissolve
add salty water and shake
separate the layers and evaporate the heptane

ideally you will be left with equally sticky resin of a more amber color.
 
butane may be easily available, but the methods of extraction require a pressure-safe vessel. a bic pen body actually works well for small amounts.
 
Isopropyl is a decent happy medium between the two, google QWISO extractions it should be all over t'internet as there was definetely a FAQ on it back on overgrow.
 
I've just discovered BHO, I'm stunned at the simplicity and productivity of this method. Started with a sandwich bag stuffed with shade leaf and scraps of immature buds, so far I've put 4 (or is it 5, can't remember been so baked the last few days) cans of butane through it and still getting oil out of it. I'm going to do it all the time now, buy a bag of good buds, grind it up and put 10 cans of butane through it until I can't get anymore, then keep the oil to spot through my vaporiser. No more bongs for me! :D
 
BHO.
I use around an oz of butane per gram of bud. Break the buds up by hand like you're going to roll a blunt. I don't like to use grinders. Stuff the pot in a stainless steel or glass tube and blast your gas through it. You can find small mesh screens online to cover the end and a rubber stopper for the head of the tube.
 
Danger of Solvent in THC Extraction

I believe I have a simple answer to your question. Even though you allowed the acetone to evaporate for a long period, trace amounts of your solvent will remain within the sticky hashish you extracted previously. The same thing will occur with any solvent, I know that using 95% isopropyl alcohol works very well for extraction however a lingering smell and taste remains even after evaporating.

If you are worried about the health concerns of inhaling the solvent vapor (which is toxic to your body fyi, solvents are one of the worst groups of abused drugs because people who inhale to get 'high' are only poisoning their brains into a lucid state. No pharmacology is evident in most solvent inhalants.) then put the remaining tar into a Pyrex baking pan and leave in the oven on a low temperature for a little bit. DO NOT raise the temperature past 190 or the THC in the hashish will begin to boil away.

This will hopefully solve your problem and if not at least you now know that solvents are bad your you in any amount. Do not sniff sharpies either.

Oh and btw not to be a technical dick or anything but your black sticky tar you extracted is no where near 70% THC. Realistically from your description I can estimate at best 35% THC. Hash oil which is...an oil (not tar)...has typically up to 50% THC when made well. For most common purposes you will never come across product with purity exceeding 50% unless you do a lot of work. Take my word for it.

Matt.
 
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