My friend is planning on getting some heroin from someone who claims it's "pure," "china white" heroin, but without the fentanyl.
Are there any simple chemicals my friend can mix the heroin with after he gets it to make sure it's pure, or are there any other simple tests to make sure the heroin isn't mixed with chalk, talcom powder, FENTANYL (because that will kill my friend for sure), rat poison, or any random white powder a dealer could potentially mix with white heroin to increase his profits?
Basically, are there any simple way to test the purity of heroin?
Also, sidenote (since i dont wanna make another topic), i have the same question about ecstasy, or ""pure"" MDMA powder, that my friend also plans on getting. How does one test the purity of MDMA, to make sure no chalk or anything else is in it?
Thanks so much