Sorry i don't know all this thing and maybe it's better that you wait someone more expert than me, but if you leave from the freeze and puor off naptha (but don't trow away) and let the dish to fully evaporate/dry, then scrape and smell, photo, etc etc...nothing wrong, you can allways redissolve in the neptha and repat again the crystallization...i think.
Then, as i asked recently for harmala freebase and trace of sodium, you can take a little of this powder and see if dissolve in water (mix and leave to decant), dmt fb don't dissolve in water, sodium dissolve in water.
Or like the eco tek take this pownder and dissolve in acetone (mix/decant), discard what don't dissolve and keep the liquid and evaporate.
But i repeat, i'm not expert, only some tek and some experiment.
Bye