So he did fasa (fumaric acid saturated acetone) with heptane? Thats interesting. Did not know that was possible. Think i might just try that sometime with fasi.
The point of making it fumarate is its much more stable, and degrades/oxidizes much less than the freebase. Its also a dry powder or crystals that are not waxy at all. FB in oj is just fine, for long term storage fumarate conversion is your best bet though.
Its afaik the best salt to have something in to prevent degradation. Salts will last orders of magnitude longer than freebase stored at the same conditions. Fumaric acid being especially resistant to degradation and used widely for other synthetic tryptamines, including the stuff straussman used in his study. And if you have some freebase that has extra crap/gunk/oils/fats/solvent leftovers (hopefully not), you can make it a fumarate and wash it with acetone that should strip away any impurities. Then freebase it again and freeze precipitate out of heptane for nice clean xtyals. I've done this a few times and it works well.
I like it because you can do fasi/fasa and get some really nice crystals of pure dmt-fumarate. Its kinda fun like freeze precipitating large crystals of pure freebase. Which in conjunction with a fasi/a salt conversion using calculated amounts of acid will give you a very pure product.
So if you have an itch to get something as pure as possible its a useful technique. Mabey you have an itch for some crystal porn
. Or if you prefer gelcaps and just want powder. I usually mix the fumarate in an acidic juice or just a shot of water, gelcaps don't agree with my throat. Caapi is delicious and i have no problem drinking a brew. MHRB brews are vile, and worse than cactus imho. Freebase in OJ is just another option you can take. They all work, just have their differences.
The point of the heptane as i see it, is the heptane has the freebase dmt soluble in it. The acetone has fumaric acid soluble in it. You mix the two together, and dmt-fumarate crystals form and drop out of solution as they're completely insoluble in the heptane, and ~1mg per ml in the acetone. Extra fumaric acid should stay in the iso.
However, i've never seen this done with naptha, heptane, or other hydrocarbon solvents before. Its usually done with fumaric acid containing iso/acetone, and fb dmt containing xylene/dlimonene/iso/acetone.
I'm actually planning on doing this tomorrow (fasi/acetone) to really clean up some fumarates i have, and if heptane worked, it would be fun to try that instead. Is this a possibility?
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