GodWhyAmISoBored t1_je45u2x wrote on March 29, 2023 at 8:06 AM

Hi there, I’m currently making decorative Color changing potions for my fantasy book shelf. Made with isopropyl alcohol with food colouring and mica powder.

I really wanted to make a white liquid red powder potion but my white food colouring Fades after a day or two and the alcohol becomes clear again (while ALL the other colours work perfectly fine and don’t fade at all)

I’ve tried water colour paint and acrylic paint as well, but neither of those worked well with the mica. Does anyone know any other paint mediums with which I could colour isopropyl alcohol permanently? I wondered if alcohol ink would work but buying a singular bottle of white for just one potion is kinda expensive (since Im not selling them) Any ideas?

--Ty-- t1_jed8wdo wrote on March 31, 2023 at 4:08 AM

Food colouring is organic.

Isopropyl destroys organic molecules.

You need an alcohol or solvent-based dye, or you need to stop using Isopropyl, and switch to something else, like mineral oil, but you will then need to switch to an oil or solvent-based dye as well.

GodWhyAmISoBored t1_jed9gqm wrote on March 31, 2023 at 4:13 AM

The thing is that food colouring is the usual medium used by potion makers with this exact recipe. Some use paint but usually to keep the liquid transparent instead of opaque, most paints like acrylic paint don’t really work. And all the other colours aside white work and hold up literal years.

So I’m not sure about your explanation if the rest of it has always worked. But I guess I can try other stuff