Back to Search
Sodium Sulfite
CAS: 7757-83-7 | H2Na2O3S
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
7757-83-7
Molecular Formula:
H2Na2O3S
Molecular Mass:
128.06 g/mol
Names and Synonyms:
Sodium Sulfite
Sulfurous acid, sodium salt (1:2)
Sulfurous acid, disodium salt
Anhydrous sodium sulfite
Disodium sulfite
Sodium sulfite (Na2SO3)
Sodium sulfite anhydrous
Sodium sulfite
Disodium sulfite (Na2SO3)
S-WAT
E 221
Identifiers:
SMILES:
O=S(O)O.[Na].[Na]
InChI:
InChI=1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)
Key Properties
Density
2.63 g/cm³
CAS Common Chemistry
Spectral Data
NMR, IR, and Mass spectral data
1H NMR
13C NMR
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 128.06 g/mol | CAS Common Chemistry |
| 128.05999999999997 g/mol | RDKit | |
| 127.95200348400002 g/mol | RDKit | |
| Density | 2.63 g/cm³ | CAS Common Chemistry |
| 2.63 g/cm3 | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Sodium_sulfite | CAS Common Chemistry |
| Canonical SMILES | [Na].O=S(O)O | CAS Common Chemistry |
| InChI | InChI=1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3) | CAS Common Chemistry |
| InChI Key | InChIKey=YKZJGZHPDUVUKN-UHFFFAOYSA-N | CAS Common Chemistry |
| Name | Sodium sulfite | CAS Common Chemistry |
| Heavy Atom Count | 6 | RDKit |
| Hydrogen Bond Acceptors | 1 | RDKit |
| Hydrogen Bond Donors | 2 | RDKit |
| Rotatable Bonds | 0 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 57.53 Ų | RDKit |
| LogP | -1.0805 | RDKit |
| Molar Refractivity | 24.908 | RDKit |
