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  1. Piranha solution - Wikipedia

    Piranha solution, also known as piranha etch, is a mixture of sulfuric acid (H2SO4) and hydrogen peroxide (H2O2). The resulting mixture is used to clean organic residues off substrates, for example …

  2. - Division of Research Safety | Illinois

    Piranha solutions are a mixture of concentrated sulfuric acid with hydrogen peroxide, usually in a ratio of 3:1 to 7:1. They are used to remove trace amounts of organic residues, such as photoresist, from …

  3. How to Make Chemical Piranha Solution - ThoughtCo

    Jun 10, 2025 · Learn how to make, use, and dispose of chemical piranha solution, a potent acid and peroxide solution used to clean glassware and other surfaces.

  4. What Is the Connection between Sulfuric Acid and Hydrogen Peroxide?

    May 21, 2024 · The reaction of sulfuric acid and hydrogen peroxide produces an aqueous solution of peroxymonosulfuric acid (H 2 SO 5): H 2 SO 4 + H 2 O 2 → H 2 SO 5 + H 2 O. This is also known as …

  5. Piranha Solutions - Office of Environmental Health and Safety

    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, …

  6. Piranha Solution – How to Make and Use It Safely

    May 4, 2020 · Piranha solution is an aqueous mixture of sulfuric acid (H 2 SO 4) and hydrogen peroxide (H 2 O 2) that removes organic residue from surfaces and makes them more hydrophilic.

  7. Chemical Hazards for Piranha Solution | Research Safety

    Piranha solution is a 3: 1 mixture concentrated sulfuric acid and hydrogen peroxide. There is also a “Base Piranha” which is composed of a 3: 1 mixture of ammonium hydroxide and hydrogen peroxide. …

  8. Acid Piranha (most common): is a 3:1 mixture of concentrated sulfuric acid (H2SO4) with hydrogen peroxide (H2O2). Base Piranha (least common): is a 3:1 mixture of ammonium hydroxide (NH4OH) …

  9. Making Piranha Solution - YouTube

    In this video we make and demonstrate the oxidizing power of piranha solution. Piranha solution is a 3:1 mixture of sulfuric acid to hydrogen peroxide. NOTE: I used nitrile gloves in this...

  10. solutions - Why should hydrogen peroxide be added to sulfuric acid

    Aug 8, 2021 · To prepare a solution of hydrogen peroxide and sulfuric acid it appears that the standard operating procedure is the opposite: the hydrogen peroxide is added to the acid, and never the reverse.