| Revision as of 11:54, 5 December 2011 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 457205640 of page Peroxydisulfuric_acid for the Chem/Drugbox validation project (updated: 'CASNo'). |
Latest revision as of 09:18, 11 December 2024 edit 14.241.196.197 (talk)No edit summary |
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{{Short description|Persulfuric acid}} |
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{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}} |
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{{chembox |
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{{Chembox |
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| Verifiedfields = changed |
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| verifiedrevid = 400845358 |
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| verifiedrevid = 464199352 |
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| ImageFile = Peroxodischwefelsäure.svg |
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| ImageFile = Peroxydisulfuric acid.svg |
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| ImageSize2 = 200px |
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| ImageFile2 = Peroxydisulfuric-acid-3D-balls.png |
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| ImageFile2 = Peroxydisulfuric-acid-3D-balls.png |
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| ImageSize2 = 200px |
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| IUPACName = μ-peroxido-bis(hydroxidodioxidosulfur)<br />peroxydisulfuric acid |
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| IUPACName = μ-peroxido-bis(hydroxidodioxidosulfur)<br />peroxydisulfuric acid |
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| OtherNames = Persulfuric acid, Peroxodisulfuric acid |
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| OtherNames = Persulfuric acid, Peroxodisulfuric acid |
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| Section1 = {{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID = 22822 |
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| ChemSpiderID = 22822 |
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| InChI1 = 1/H2O8S2/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6) |
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| InChI1 = 1/H2O8S2/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6) |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey = JRKICGRDRMAZLK-UHFFFAOYSA-N |
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| StdInChIKey = JRKICGRDRMAZLK-UHFFFAOYSA-N |
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| CASNo_Ref = {{cascite|correct|??}} |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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| CASNo = <!-- blanked - oldvalue: 13445-49-3 --> |
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| CASNo = 13445-49-3 |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| PubChem = 24413 |
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| UNII = 2RQ1860626 |
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| ChEBI_Ref = {{ebicite|correct|EBI}} |
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| PubChem = 24413 |
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| ChEBI_Ref = {{ebicite|correct|EBI}} |
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| ChEBI = 29268 |
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| ChEBI = 29268 |
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| InChI = 1/H2O8S2/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6)/f/h1,4H |
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| InChI = 1/H2O8S2/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6)/f/h1,4H |
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| SMILES = O=S(=O)(OOS(=O)(=O)O)O |
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| SMILES = O=S(=O)(OOS(=O)(=O)O)O |
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}} |
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| Section2 = {{Chembox Properties |
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|Section2={{Chembox Properties |
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| H = 2 | S = 2 | O = 8 |
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| H=2 | S=2 | O=8 |
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| Appearance = Colourless solid |
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| Appearance = Colourless solid |
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| Density = |
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| Density = |
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| MeltingPtC = 65 |
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| MeltingPtC = 65 |
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| MeltingPt_notes = (decomposes) |
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| Melting_notes = Decomposes |
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| BoilingPt = |
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| BoilingPt = |
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| Solubility = soluble |
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| Solubility = soluble |
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| ConjugateBase = ] |
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| Section7 = {{Chembox Related |
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|Section7={{Chembox Related |
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| OtherCations = ]<br>]<br>] |
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| OtherCations = ]<br>]<br>] |
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| OtherCpds = ]<br>] |
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| OtherCompounds = ]<br>] |
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}} |
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'''Peroxydisulfuric acid''' is an ] with a ] {{chem2|(HO3SO)2}}. Also called '''Marshall's acid''' after Professor ], who discovered it in 1891.<ref>{{Cite book | url=https://books.google.com/books?id=Fl4sdCYrq3cC&q=hugh++marshall+chemist&pg=PA244 |title = Elsevier's Dictionary of Chemoetymology: The Whys and Whences of Chemical Nomenclature and Terminology|isbn = 9780080488813|last1 = Senning|first1 = Alexander|date = 2006-10-30}}</ref> |
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==Structure and bonding== |
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This ] features sulfur in its +6 ] and a ] group. Sulfur adopts the usual tetrahedral geometry.<ref>{{Greenwood&Earnshaw2nd}}</ref> |
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== Synthesis == |
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The acid is prepared by the reaction of ] with ]:<ref name= Ullmann>{{Ullmann |title= Peroxo Compounds, Inorganic |author= Harald Jakob, Stefan Leininger, Thomas Lehmann, Sylvia Jacobi, Sven Gutewort |doi= 10.1002/14356007.a19_177.pub2}}</ref> |
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:{{chem2 | 2 ClSO3H + H2O2 -> H2S2O8 + 2 HCl }} |
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Another method is the electrolysis of moderately concentrated sulfuric acid (60-70%) with platinum electrodes at high current density and voltage: |
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:H<sub>2</sub>SO<sub>4</sub> + H<sub>2</sub>O → H<sub>3</sub>O<sup>+</sup> + HSO<sub>4</sub><sup>−</sup> (dissociation of sulfuric acid) |
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:2 HSO<sub>4</sub><sup>−</sup> → H<sub>2</sub>S<sub>2</sub>O<sub>8</sub> + 2 e<sup>−</sup> (E<sub>0</sub> = +2.4V) (bisulfate oxidation) |
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:2 H<sub>2</sub>SO<sub>4</sub> → H<sub>2</sub>S<sub>2</sub>O<sub>8</sub> + H<sub>2</sub> (overall reaction) |
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:3 H<sub>2</sub>O → O<sub>3</sub> + 6 H<sup>+</sup> (ozone produced as a side product) |
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==Uses== |
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Peroxydisulfuric acid is a n precursor to several salts including sodium peroxydisulfate, potassium peroxydisulfate, and ammonium peroxydisulfate. These salts are used to initiate the polymerization of ], ], and related monomers. This application exploits the tendency of the peroxydisulfate anion to undergo homolysis to produce radicals. They are also used as cleaning of circuit boards.<ref name= Ullmann/> |
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==See also== |
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* ] (Caro's acid) |
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* ] |
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==References== |
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{{reflist}} |
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{{Hydrogen compounds}} |
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{{Persulfates}} |
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] |
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] |
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] |
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] |