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  2. Peroxymonosulfuric acid - Wikipedia

    en.wikipedia.org/wiki/Peroxymonosulfuric_acid

    Peroxymonosulfuric acid, also known as persulfuric acid, peroxysulfuric acid is the inorganic compound with the formula H 2 SO 5. It is a white solid. It is a component of Caro's acid, which is a solution of peroxymonosulfuric acid in sulfuric acid containing small amounts of water. [4] Peroxymonosulfuric acid is a very strong oxidant (E 0 = +2 ...

  3. Template:List of oxidation states of the elements - Wikipedia

    en.wikipedia.org/wiki/Template:List_of_oxidation...

    The oxidation states are also maintained in articles of the elements (of course), and systematically in the table {{Infobox element/symbol-to-oxidation-state}}

  4. Disulfurous acid - Wikipedia

    en.wikipedia.org/wiki/Disulfurous_acid

    Disulfurous acid, metabisulfurous acid or pyrosulfurous acid is an oxoacid of sulfur with the formula H 2 S 2 O 5. Its structure is HO−S(=O) 2 −S(=O)−OH. The salts of disulfurous acid are called disulfites or metabisulfites. Disulfurous acid is, like sulfurous acid (H 2 SO 3), a phantom acid, which does not exist in the free state. [2]

  5. Oleum - Wikipedia

    en.wikipedia.org/wiki/Oleum

    For x = 1 and y = 2 the empirical formula H 2 S 2 O 7 for disulfuric (pyrosulfuric) acid is obtained. Pure disulfuric acid is a solid at room temperature, melting at 36 °C and rarely used either in the laboratory or industrial processes — although recent research indicates that pure disulfuric acid has never been isolated yet.

  6. Oxidation state - Wikipedia

    en.wikipedia.org/wiki/Oxidation_state

    Oxidation states are typically represented by integers which may be positive, zero, or negative. In some cases, the average oxidation state of an element is a fraction, such as ⁠ 8 / 3 ⁠ for iron in magnetite Fe 3 O 4 . The highest known oxidation state is reported to be +9, displayed by iridium in the tetroxoiridium(IX) cation (IrO + 4). [1]

  7. Peroxy acid - Wikipedia

    en.wikipedia.org/wiki/Peroxy_acid

    General formulas of an organic peroxy acid (top) compared with a carboxylic acid (bottom).. A peroxy acid (often spelled as one word, peroxyacid, and sometimes called peracid) is an acid which contains an acidic −OOH group.

  8. Disulfuric acid - Wikipedia

    en.wikipedia.org/wiki/Disulfuric_acid

    Disulfuric acid (alternative spelling disulphuric acid) or pyrosulfuric acid (alternative spelling pyrosulphuric acid), also named oleum, is a sulfur oxoacid. [3] It is a major constituent of fuming sulfuric acid, oleum, and this is how most chemists encounter it.

  9. Sulfuric acid - Wikipedia

    en.wikipedia.org/wiki/Sulfuric_acid

    Dilute sulfuric acid is a constituent of acid rain, which is formed by atmospheric oxidation of sulfur dioxide in the presence of water – i.e. oxidation of sulfurous acid. When sulfur-containing fuels such as coal or oil are burned, sulfur dioxide is the main byproduct (besides the chief products carbon oxides and water).