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Piranha solution, also known as piranha etch, is a mixture of sulfuric acid (H 2 SO 4) and hydrogen peroxide (H 2 O 2). The resulting mixture is used to clean organic residues off substrates, for example silicon wafers . [1]
May 4, 2020 · Piranha solution is a mixture of sulfuric acid and hydrogen peroxide that removes organic residue from surfaces. Learn how to prepare, use, and dispose of piranha solution safely and effectively.
Jun 4, 2020 · Learn how to prepare, use, and dispose of piranha solution, a mixture of acid and peroxide that eats away organics. Find out the recipes, precautions, and tips for this hazardous chemical.
- Anne Marie Helmenstine, Ph.D.
Learn how to handle, use and dispose of piranha solutions, a mixture of sulfuric acid and hydrogen peroxide used to remove organic residues from substrates. Find out the emergency procedures, precautions and storage tips for this highly reactive and hazardous chemical.
Dec 29, 2021 · Piranha solution is a dangerous and useful substance used throughout academia and industry. However, there is little peer-reviewed work on its safe use, and institutional protocols are limited in their applicability beyond their institute of origin.
Piranha solutions are used to remove organic residues from substrates, particularly in microfabrication labs. The traditional piranha solution is a 3:1 mixture of sulfuric acid and 30% hydrogen peroxide. The solution may be mixed before application or directly applied to the material, applying the sulfuric acid, followed by the peroxide.
Sep 4, 2019 · Piranha solution (also known as piranha etch or acid piranha) is a popular name for a solution of Caro's acid which is usually prepared by reacting sulfuric acid and hydrogen peroxide; it is used to clean organic residues from glassware or other acid resistant materials.
