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658510

Potassium sulfite

Name: Potassium sulfite
Brand: ALDRICH

90%

Synonym(s):

dipotassiumsulfite

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About This Item

Linear Formula:

K₂SO₃

CAS Number:

10117-38-1

Molecular Weight:

158.26

NACRES:

NA.22

PubChem Substance ID:

24884361

UNSPSC Code:

12352302

EC Number:

233-321-1

MDL number:

MFCD00011387

Assay:

90%

Form:

powder

Solubility:

water: soluble (1,060 g/l at 25 °C (77 °F))

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Properties

Quality Segment

200

assay

90%

form

powder

solubility

water: soluble (1,060 g/l at 25 °C (77 °F))

SMILES string

[K+].[K+].[O-]S([O-])=O

InChI

1S/2K.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

InChI key

BHZRJJOHZFYXTO-UHFFFAOYSA-L

Description

Application

Potassium sulfite (K₂SO₃) can be used as a catalyst in the oxidation of sulfur dioxide. It is also used as an anionic catalyst for the cyclotrimerization of aryl isocyanates to prepare heterocyclic symmetrical isocyanurates.

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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