Piranha solution, also known as piranha etch, is a mixture of sulfuric acid (H2SO4) and hydrogen peroxide (H2O2), used to clean organic residues off substrates. Because the mixture is a strong oxidizing agent, it will remove most organic matter, and it will also hydroxylate most surfaces (add OH groups), making them highly hydrophilic (water compatible).
Read more about Piranha Solution: Preparation and Use, Applications, Mechanism of Action, Safety and Disposal
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“There’s one solution that ends all life’s problems.”
—Chinese proverb.