Potassium dithionite

Potassium dithionite
	Chemical structure of potassium dithioniteChemical structure of potassium dithionite
Identifiers
CAS Number	14293-73-3 check;
3D model (JSmol)	Interactive image;
ChemSpider	55625 check;
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E number	Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).
PubChem CID	61726;
UNII	0B8I49QLG5 check;
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	InChI InChI=1S/2K.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2+1;/p-2 check Key: HEZHYQDYRPUXNJ-UHFFFAOYSA-L check; 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;
	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 otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). check verify (what is check☒ ?) Infobox references

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

The compound has UN number UN 1929. As a dithionite, it is closely related to sodium dithionite, which is a commonly used reducing agent and bleaching agent.

References

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v t e Potassium compounds
H, (pseudo)halogens	KBr KBrO₃ KBrO₄ KCl KClO KClO2 KClO₃ KClO₄ KCN KCNO KF KHF₂ KH KI KIO₃ KIO₄ KOCN KSCN
chalcogens	K₂O KOH K₂O₂ KO₂ KO₃ K₂S KHS K₂SO₃ KHSO₃ K₂SO₄ KHSO₄ KHSO₅ K₂S₂O₃ K₂S₂O₅ K₂S₂O₇ K₂S₂O₈ K₂Se K₂SeO₄ K₂Te K₂TeO₃ K₂Po
pnictogens	KAsO₂ KH₂AsO₄ K₃N KN₃ KNH₂ KNO₂ KNO₃ K₂HPO₄ KH₂PO₃ KH₂PO₄ K₃P KPF₆ K₃PO₄
B, C group	KBF₄ K₂Al₂B₂O₇ K₂Al₂O₄ K₂CO₃ KHCO₃ K₂SiF₆ K₂SiO₃
transition metals	K₂ReBr₆ KCrO₃Cl K₄Mo₂Cl₈ K₂OsCl₆ K₂PtCl₄ K₂PtCl₆ K₂ReCl₆ K₃CrO₄ K₂CrO₄ K₃CrO₈ K₂Cr₂O₇ K₂FeO₄ K₄[Fe(CN)₆]·3H₂O K₃[Fe(CN)₆] K₃[Fe(C₂O₄)₃] K₂TiF₆ K₂ReF₆ KAsF₆ K₂ZrF₆ K₂ReI₆ K₂[Pt(CN)₄] K₂MnO₄ KMnO₄
organic	KHCO₂ KCH₃CO₂ KCF₃CO₂ KHC₂O₄ C₆H₅COOK KC₈H₅O₄ KC₁₂H₂₃O₂ KC₁₈H₃₅O₂ CF₃KO₃S

Identifiers
Chemical structure of potassium dithionite Chemical structure of potassium dithionite
CAS Number	14293-73-3^checkY
3D model (JSmol)	Interactive image
ChemSpider	55625^checkY
ECHA InfoCard	Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value). Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
E number	Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).
PubChem CID	61726
UNII	0B8I49QLG5^checkY
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InChI InChI=1S/2K.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2+1;/p-2^checkY Key: HEZHYQDYRPUXNJ-UHFFFAOYSA-L^checkY 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
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 otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). checkY verify (what is ^checkY☒N ?) Infobox references