potassium bichromate, potassium ferricyanide, and bromine dissolved in sulphuric acid, ferric chloride, hydrochloric acid and chlorine. Moreover, they have removed the oxygen by using a ...

once the master plate is completed, it's washed with deionized water and soaked in a vibrant orange potassium bichromate solution that prevents the plate from rusting. money isn't actually made ...