Peroxomonosulfate

The peroxomonosulfate ion, SO²⁻
₅, is a sulfur oxoanion. It is sometimes referred to as the persulfate ion, but this term also refers to the peroxydisulfate ion, S
₂O²⁻
₈.

Peroxomonosulfate

Names
Other names Persulfate[1]
Identifiers
CAS Number	22047-43-4
3D model (JSmol)	Interactive image
ChEBI	CHEBI:29288
ChemSpider	140599
Gmelin Reference	101038
InChI InChI=1S/H2O5S/c1-5-6(2,3)4/h1H,(H,2,3,4)/p-2 Key: FHHJDRFHHWUPDG-UHFFFAOYSA-L
SMILES [O-]OS(=O)(=O)[O-]
Properties
Chemical formula	O5S−2
Molar mass	112.06 g·mol−1
Conjugate acid	Peroxymonosulfuric acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Its other IUPAC names are sulfuroperoxoate and trioxidoperoxidosulfate(2−).^[2]

Compounds containing peroxomonosulfate

• Na₂SO₅
• KHSO₅

See also

• Peroxymonosulfuric acid