CAS Registry Number®
16731-55-8
CAS Name
Potassium pyrosulfite
Molecular Formula
H2O5S2.2K
Compound Properties
-
Melting Point (1)
150 °C (decomp)
-
Density (1)
2.3 g/cm³
Source(s)
- (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)
Other Names and Identifiers
InChI
InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)
InChIKey
InChIKey=TWDUAWOEUFKDNM-UHFFFAOYSA-N
SMILES
S(S(=O)O)(=O)(=O)O.[K]
Canonical SMILES
[K].O=S(O)S(=O)(=O)O
Other Names for this Substance
- Disulfurous acid, potassium salt (1:2)
- Pyrosulfurous acid, dipotassium salt
- Potassium pyrosulfite
- Disulfurous acid, dipotassium salt
- Potassium metabisulfite
- Potassium metabisulfite (K2S2O5)
- Dipotassium metabisulfite
- Potassium pyrosulfite (K2S2O5)
- Dipotassium pyrosulfite
- Dipotassium disulfite
- Potassium disulfite (K2S2O5)
- E 224
- Kadifit
Deleted or Replaced CAS Registry Numbers
4429-42-9
