Search:

I´m not sure if soap and water would work. Of course the surfactants in the solution could trap small amounts of particles and create a dispersion.
But I highly doubt this will be easy. I wouldn´t...

This is highly difficult and so far I have done it only once. I mixed chromium oxide 1:1 with ethanol. That means one part (volume) Cr2O3 on 1 part (volume) Ethanol.
You have to shake it thoroughly...