Potassium dithionite

Potassium dithionite

Identifiers
CAS Registry Number	14293-73-3 Y
ChemSpider	55625 Y
InChI InChI=1S/2K.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2 Y Key: HEZHYQDYRPUXNJ-UHFFFAOYSA-L Y InChI=1/2K.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2 Key: HEZHYQDYRPUXNJ-NUQVWONBAU
Jmol-3D images	Image
PubChem	61726
SMILES [O-]S(=O)S(=O)[O-].[K+].[K+]
Properties
Chemical formula	K2O4S2
Molar mass	206.32 g/mol
Appearance	light yellow powder
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Potassium dithionite or potassium hydrosulfite is a potassium salt of dithionous acid.

The compound has UN number UN 1929. It is an inhibitor of the polyphenol oxidase.

See also

• List of UN numbers 1901 to 2000

References