Peroxydisulfuric acid

Peroxydisulfuric acid
Names
IUPAC names
μ-peroxido-bis(hydroxidodioxidosulfur)
peroxydisulfuric acid
Other names
Persulfuric acid, Peroxodisulfuric acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
UNII
  • InChI=1S/H2O8S2/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6) checkY
    Key: JRKICGRDRMAZLK-UHFFFAOYSA-N checkY
  • 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
  • InChI=1/H2O8S2/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6)
    Key: JRKICGRDRMAZLK-UHFFFAOYAS
  • O=S(=O)(OOS(=O)(=O)O)O
Properties
H2O8S2
Molar mass 194.13 g·mol−1
Appearance Colourless solid
Melting point 65 °C (149 °F; 338 K) (decomposes)
soluble
Conjugate base Peroxydisulfate
Related compounds
Other cations
Potassium persulfate
Sodium persulfate
Ammonium persulfate
Related compounds
Peroxymonosulfuric acid
Pyrosulfuric acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Peroxydisulfuric acid is an inorganic compound with a chemical formula (HO3SO)2. Also called Marshall's acid after Professor Hugh Marshall, who discovered it in 1891.[1]

  1. ^ Senning, Alexander (2006-10-30). Elsevier's Dictionary of Chemoetymology: The Whys and Whences of Chemical Nomenclature and Terminology. ISBN 9780080488813.