CAS Registry Number®
7681-57-4
CAS Name
Sodium pyrosulfite
Molecular Formula
H2O5S2.2Na
Compound Properties
-
Melting Point (1)
150 °C (decomp)
-
Density (1)
1.4 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/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)
InChIKey
InChIKey=ZBVPOSMABOMSMZ-UHFFFAOYSA-N
SMILES
S(S(=O)O)(=O)(=O)O.[Na]
Canonical SMILES
[Na].O=S(O)S(=O)(=O)O
Other Names for this Substance
- Disulfurous acid, sodium salt (1:2)
- Pyrosulfurous acid, disodium salt
- Disulfurous acid, disodium salt
- Sodium pyrosulfite (Na2S2O5)
- Sodium pyrosulfite
- Sodium metabisulfite
- Sodium metabisulfite (Na2S2O5)
- Disodium pyrosulfite
- Fertisilo
- Disodium disulfite
- Sodium disulfite (Na2S2O5)
- Disodium metabisulfite
- Disodium pyrosulfite (Na2S2O5)
- Campden Tablets
- Colorstrip Catalyst 100
- E 223
- Sobis
- Sobisu
- Sodium sulfur oxide (Na2S2O5)
- NSC 158277
Deleted or Replaced CAS Registry Numbers
15771-29-6, 1287784-10-4, 2242622-57-5
