I distilled some horrible tasting wine to make it into a usable windshield washer fluid (it's just ethanol with some horrible tasting organic things). The wine started as a light yellow color, and it distilled into a colorless clear liquid. Ok that's good, ethanol is supposed to be colorless. This is an inefficient column though, so I ran that product through again to make it more pure, but this time I saturated it with NaCl to make it work better (increase ethanol partial pressure, lower water partial pressure). The product of this distillation was blue in color. I started with a colorless liquid and some salt, and I got a blue solution. I obviously won't put this into my car unless I know what it is. It has a very very strong smell to it. Almost smells like ammonia. edit: this blue liquid is the very first cut to come from the distillation. It accounts for maybe the first 10-20% coming off. Any suggestions at all would be greatly appreciated.