Yes not for drinking, isopropanol is not safe to drink. My theory was it would end up with 70% isopropanol and 30% distilled water and silver nano particles (100ppm malto based). But I am trying to figure out what happened, why it went darker and then went totally clear.
My only totally non-science-background guess is maybe the acidity of the IPA caused the silver to begin agglomeration and then maybe combined with the oxygen from the IPA to form silver oxide which dissolved and then left some other chemical remainder based on missing oxygen. But I have entirely no idea. I'd really like to know what likely happened.