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  2. Piranha solution - Wikipedia

    en.wikipedia.org/wiki/Piranha_solution

    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 silicon wafers. [1] Because the mixture is a strong oxidizing agent, it will decompose most organic matter, and it will also hydroxylate most ...

  3. Portable water purification - Wikipedia

    en.wikipedia.org/wiki/Portable_water_purification

    Portable water purification devices are self-contained, easily transported units used to purify water from untreated sources (such as rivers, lakes, and wells) for drinking purposes. Their main function is to eliminate pathogens, and often also of suspended solids and some unpalatable or toxic compounds. These units provide an autonomous supply ...

  4. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Hydrogen peroxide (H 2 O 2) is a common disinfectant that can purify water. It is typically produced at chemical plants and transported to the contaminated water. An alternative approach employs a gold-palladium catalyst to synthesize H 2 O 2 from ambient hydrogen and oxygen atoms at the use site.

  5. Advanced oxidation process - Wikipedia

    en.wikipedia.org/wiki/Advanced_oxidation_process

    The reaction, using H 2 O 2 for the formation of ·OH, is carried out in an acidic medium (2.5-4.5 pH) [9] and a low temperature (30 °C - 50 °C), [10] in a safe and efficient way, using optimized catalyst and hydrogen peroxide formulations.

  6. Hydrogen peroxide - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_peroxide

    Hydrogen peroxide is a chemical compound with the formula H 2 O 2.In its pure form, it is a very pale blue [5] liquid that is slightly more viscous than water.It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.

  7. Fenton's reagent - Wikipedia

    en.wikipedia.org/wiki/Fenton's_reagent

    Fenton's reagent is a solution of hydrogen peroxide (H 2 O 2) and an iron catalyst (typically iron (II) sulfate, FeSO 4). [1] It is used to oxidize contaminants or waste water as part of an advanced oxidation process. Fenton's reagent can be used to destroy organic compounds such as trichloroethylene and tetrachloroethylene (perchloroethylene).

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