So I got some acetone ready for a extraction. I tested the acetone by evaporating some in a glass plate and on the bottom was left a thin layer of grease kind of like finger print grease. It is clear in colour and had no smell. I'm from Mexico and the acetone came out of a industrial barrel. Do you think this will be safe to use or not. The acetone itself smells so much stronger than any other solvent I came across. Any thoughts from the pro's?

You'd need to carefully distil that before considering using it to prepare anything you intend to ingest in any way. Or find a purer grade of acetone. What extraction were you planning anyhow?

(Not that I consider myself a pro.)

I would distill the acetone at least once (it's easy using a water bath), a simple distillation will do (but watch for any lighter fractions). There are many tutorials on how to purify (and dry) acetone, e.g.

I'm going to do Noman's tek with Mhrb.
Distilling is something I have not considered I need to look into that

Cheers for the fast response. I thought I was ready.... Thanks for the video link I will get on the case right away

There is no use of acetone in Noman's Tek (?).

Yes I did the distillation and drying of acetone twice, it's very easy, but of course be careful about the vapors.

I thought acetone could be substituted for naphtha?

No. Acetone mixes with water. You need a non polar solvent that does not mix with water.

Yes sorry nexicans I should have dug a bit deeper before asking. I just read that dmt is also soluble in cold acetone so the precipitation won't work. Thanks anyways for your responses you saved me from making a huge mistake.... Man I love this place

You can use acetone in an extraction tek but it would be a drytek using sodium carbonate or calcium hydroxide as the base, followed by FASA/CASA to precipitate the alkaloid salt. Probably not for beginners.

Yeah that sounds a bit tricky for me. This is my first ever attempt. Chemicals are very easy and very cheap to obtain here in Mexico. I will be using heptane..... It will still be coming out of a big industrial drum so I wonder if it will have the same kind of residue after the evaporation. Something tells me it will

Yes you'll have to purify your industrial heptane too, although freeze precipitation is pretty forgiving.

How about visiting the farmacia to get something nice for a cleanup recrystallisation?

What would I need from the farmacia

pharmaceutical grade nafta? Check an online pharmacy perhaps. I was talking recently with another member about heptane which apparently is sold by a Spanish online pharmacy so it's not impossible that this applies to Mexico also.

Can I do one pull freeze it then the next day do the second pull and so on or is that not advised

This stuff has been covered extensively in the forum multiple times already. It's time to do some reading

Re-using your naphtha after each freeze precipitation is a pretty good idea if there's somewhere safe and dark to keep your basic soup between pulls.

Yes you can. You do a pull with minimum amount of naphtha, then put it in freezer until no more crystallization occurs. Then you can pour off the naphtha and reuse it for another pull.

Of course you can do several pulls at once with fresh naphtha or do each pull separately with fresh naphtha, but this approach requires more solvent plus the concentration of DMT in it may be too low for precipiration and then you have to evaporate lots of solvent just to saturate it.

Please read the FAQ and through couple of threads - this has been already discussed many times.

You have been a great help thank you.
I tried finding answers to these questions before asking but I always get the same few pages popping up that don't exactly tell me what I need to know.

I decided not to use the industrial heptane and found some Newport lighter fluid instead. People have reported it works fine

Evaporating test was successful no residue what so ever. Looks like I am finally ready

A barrel of Mexican industrial chemicals? Dude id rather IV a Can of raid then touch that stuff lol. Unless you have an honest MSDS thats actualy enforced, i wouldnt touch it. Can you get a can of Acetone produced in the U.S.? Home depo sells Klean Strip, so does walmart. Its like $5 a quart.