Question

what is piranha solution. what is it used for?

Answer 1

Piranha solution, also known as piranha etch, is a mixture of sulfuric acid (H₂SO₄) and hydrogen peroxide (H₂O₂). The mixture is acts as strong oxidising agent. It is used to clean organic impurities of substrates. It also makes the surface hydrophilic by adding OH group to surfaces.