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Sodium Thiosulfate
CAS: 7772-98-7 | H2Na2O3S2
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
7772-98-7
Molecular Formula:
H2Na2O3S2
Molecular Mass:
160.13 g/mol
Names and Synonyms:
Sodium Thiosulfate
Thiosulfuric acid (H2S2O3), sodium salt (1:2)
Thiosulfuric acid, disodium salt
Thiosulfuric acid (H2S2O3), disodium salt
Disodium thiosulfate
Hypo
Sodium thiosulfate
Sodium thiosulfate anhydrous
Sodium thiosulfate (Na2(S2O3))
Sodium oxide sulfide (Na2S2O3)
Sodium thiosulphate
S-Hydril
Sodium hyposulfite
Sodothiol
Declor-It
Chlorine Control
Chlorine Cure
Disodium thiosulphate
Desilube 88
Sulfactol
Ametox
Antichlor
Sulfothiorine
MFS 50
Identifiers:
SMILES:
O=S(O)(O)=S.[Na].[Na]
InChI:
InChI=1S/2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)
Key Properties
Melting Point
48 °C
CAS Common Chemistry
Density
1.67 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 | 160.13 g/mol | CAS Common Chemistry |
| 160.127 g/mol | RDKit | |
| 159.924074484 g/mol | RDKit | |
| Density | 1.67 g/cm³ | CAS Common Chemistry |
| 1.667 g/cm3 | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Sodium_thiosulfate | CAS Common Chemistry |
| Canonical SMILES | [Na].O=S(=O)(O)S | CAS Common Chemistry |
| InChI | InChI=1S/2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4) | CAS Common Chemistry |
| InChI Key | InChIKey=UWUDCDBGGWPQHS-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 48 °C | CAS Common Chemistry |
| Name | Sodium thiosulfate | CAS Common Chemistry |
| Heavy Atom Count | 7 | RDKit |
| Hydrogen Bond Acceptors | 2 | RDKit |
| Hydrogen Bond Donors | 2 | RDKit |
| Rotatable Bonds | 0 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 57.53 Ų | RDKit |
| LogP | -1.0828999999999998 | RDKit |
| Molar Refractivity | 32.272999999999996 | RDKit |
