That's a food grade mess of a spice, then....
I've extracted DMT many times using foodgrade solvents or otherwise, and Ive never ever came across black spice.
If I were you I would clean it up: redissolve in acid, rebase, resalt and convert to freebase as BLAB says. Or at the very least mix with sodium carbonate, pull with dry acetone/IPA/ethanol and evap. If you're doing the q21 acetate-evap conversion, I would not recommend doing that because it leaves impurities in the spice which are not pleasant to smoke IMO (possibly irritating/toxic depending on whats there, which we cant know without analysis). Better re-A/Bing it all...
And use pure distilled white vinegar (with no additives) or pure acetic acid to salt instead next time.