Santaonacid:

Anyone who already has trouble sourcing useful naphtha should perhaps not yet consider produce limonene by extracting it themselves. Also mind that you cannot freeze precipitate dmt from limonene nor is it practical to evaporate the limonene off.

Methanol is not a nonpolar solvent, it readily mixes with water in any proportion, so it is not a substitute for naphtha. Really, stick to the time tested and proven teks before trying any variations, especially if you do not understand the mechanisms and techniques very well. Make sure that you thoroughly understand a tek before inventing variations or short cuts.

Light naphtha is also sold as "white gas". The lightest (liquid at stp) naphtha fraction is called "petroleum ether".

zknarc:

When using the technique of freeze precipitation, you need not evaporate very much solvent, only the tiny bits that still wet the filtered product crystals, so this would be quite doable even with white spirit. In fact fully evaporating all solvent is a bad idea, because you get a much more impure product as the end result, containing possible nonvolatile impurities from the solvent as well as other impurities stemming from the plant matter and other parts of the extraction process.

Alternative procedures, especially useful when a heavy naphtha solvent is not saturated enough for efficient freeze precipitation, are:
1. - FASA or FASI (search the wiki for details);
2. - backwash the solvent into a smaller volume of acidic water (eg. vinegar). This can then be processed in multiple ways, like:
.2 a. - basing and extracting with a smaller amount of solvent such that it can be freeze precipitated;
.2 b. - evaporating to nearly dryness and mixing with sodium carbonate, further drying and the extracting with alcohol.

I'm sure that there are many more options that have been explored and reported here on the forum. Look around a bit. Really, try to learn a bit before asking questions that have been answered here so many times before.

Coleman fuel is a mixture of cyclohexane, nonane, octane, heptane, and pentane.

What about Coleman Camp Fuel? I saw these sold in 1L PET bottles and also seen a successful extraction done with it.

From Wikipedia:



If you live in Europe, consider getting light gas from Poland - it's sold as "benzyna ekstrakcyjna" and also have been successfully used for DMT extractions.

I am not 100% sure about purity and if there are additives added lately.

You could look at using a heavier naphtha for pulls, followed by a mini A/B into heptane, or a standard recrystallisation with heptane (or both). Heavier naphthas might include bbq lighting fluid (but check that it's hydrocarbon based!), white spirit or low odour lamp oil. I think white spirit is a UK thing though. Artists' supply stores might carry a version of white spirit or if you were feeling experimental, turpentine would work for pulls but probably wouldn't freeze precipitate (you'd likely get pine-flavoured product as well).

If you can only obtain hexane/heptane, it will still work for pulls but needs to be a bit warm to pull a decent amount. You'd probably want to reuse your hexane or it'll get expensive. Also, hexane is neurotoxic so I prefer not to recommend its (prolonged) use.

You'll be fine using heptane. The higher boiling point than hexane can be considered a plus point overall, I think.

Your amount of lye would be the same for either solvent but you might want to make sure the heptane is at about 40 - 45°C (hand hot) to ensure optimal pulling of alkaloids.

Hopefully you'll find this as easy as it should be!