Peroxymonosulfuric acid

{{Short description|Powerful oxidizing agent}}

{{Chembox

| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 464199379

| Name = Peroxymonosulfuric acid

| ImageFile = Peroxomonoschwefelsäure.svg

| ImageClass = skin-invert-image

| ImageFile_Ref = {{chemboximage|correct|??}}

| ImageName = Skeletal formula of peroxymonosulfuric acid

| ImageFile1 = Caro's-acid-3D-balls.png

| ImageClass1 = bg-transparent

| ImageFile1_Ref = {{chemboximage|correct|??}}

| ImageName1 = Ball and stick model of peroxymonosulfuric acid

| IUPACNames = Peroxysulfuric acid
Sulfuroperoxoic acid{{RedBookRef|page=139}}

| SystematicName = (Dioxidanido)hydroxidodioxidosulfur{{Cite web|title = Peroxysulfuric acid (CHEBI:29286)|url = http://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29286|work = Chemical Entities of Biological Interest|publisher = European Bioinformatics Institute|access-date = 17 November 2011|location = UK|date = 20 November 2007}}

| OtherNames = Peroxosulfuric acid
Peroxomonosulfuric acid{{Citation needed|date = November 2011}}

Persulfuric acid{{Citation needed|date = November 2011}}
Caro's acid

|Section1={{Chembox Identifiers

| CASNo = 7722-86-3

| CASNo_Ref = {{cascite|changed|CAS}}

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = JC6U8R2UJ9

| PubChem = 2754594

| ChemSpiderID = 2035480

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| EINECS = 231-766-6

| UNNumber = 1483

| ChEBI = 29286

| ChEBI_Ref = {{ebicite|correct|EBI}}

| Gmelin = 101039

| SMILES = OOS(O)(=O)=O

| SMILES1 = [O].[O].OOSO

| StdInChI = 1S/H2O5S/c1-5-6(2,3)4/h1H,(H,2,3,4)

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = FHHJDRFHHWUPDG-UHFFFAOYSA-N

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

}}

|Section2={{Chembox Properties

| Formula = {{Chem|H|2|SO|5}}

| MolarMass = 114.078 g mol⁻¹

| Appearance = White crystals

| Density = 2.239 g cm⁻³

| ConjugateBase = Peroxomonosulfate

| pKa = 1, 9.3{{cite book|title=Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution|editor-first=D. D.|editor-last=Perrin|edition=2nd|series=IUPAC Chemical Data|issue=29|publisher=Pergamon|location=Oxford|year=1982|publication-date=1984|orig-date=1969|lccn=82-16524|isbn=0-08-029214-3|at=Entry 176}}

| MeltingPt = 45 °C

}}

|Section3={{Chembox Structure

| Coordination = Tetrahedral at S

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|Section4={{Chembox Hazards

| MainHazards = strong oxidizer

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Peroxymonosulfuric acid, also known as persulfuric acid, peroxysulfuric acid is the inorganic compound with the formula {{chem2|H2SO5}}. 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. Peroxymonosulfuric acid is a very strong oxidant (E⁰ = +2.51 V).