You start with liquid metal one, liquid metal two, you have the atom ratios proper, they mix, electron transfer occurs and poof, it is clear and colorless. Sorcery.

Bleaching: (1) Chemical process on photographic materials, which converts the black metallic silver image into a colourless silver complex.

Hydrofluoric acid (HF), a colorless inorganic acid with mild irritating odor, is used extensively in various industries, such as the semiconductor industry and the electropolishing of metal.