Potassium metabisulfite

K2O5S2CAS 16731-55-8222.31 g/mol

O−SOSO−OOK+K+

Properties

Molecular formula
K2O5S2
Molar mass
222.31 g/mol
Exact mass
221.8461 Da
Density
2.3 g/mL
Melting point
150 °C (decomposes)
logP
-1.75Crippen estimate
Polar surface area
91.7 Ų
H-bond donors / acceptors
2 / 3
Rotatable bonds
1

Identifiers

CAS number
16731-55-8
SMILES
[O-]S(=O)S([O-])(=O)=O.[K+].[K+]
InChIKey
TWDUAWOEUFKDNM-UHFFFAOYSA-N
InChI
InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

12 names
  • Disulfurous acid, potassium salt (1:2)
  • Pyrosulfurous acid, dipotassium salt
  • Potassium pyrosulfite
  • Disulfurous acid, dipotassium salt
  • Potassium metabisulfite (K2S2O5)
  • Dipotassium metabisulfite
  • Potassium pyrosulfite (K2S2O5)
  • Dipotassium pyrosulfite
  • Dipotassium disulfite
  • Potassium disulfite (K2S2O5)
  • E 224
  • Kadifit

Work with Potassium metabisulfite

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

Elsewhere