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Molecule
Potassium Sulfate
CAS: 7778-80-5 · H2K2O4S
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 7778-80-5
- Molecular Formula
- H2K2O4S
- Molecular Mass
- 176.27 g/mol
Identifiers
CAS Registry Number
7778-80-5
SMILES
O=S(=O)(O)O.[K].[K]
InChI Key
RELBRYJDPFWCIM-UHFFFAOYSA-N
InChI
InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)
Names and Synonyms
- Potassium Sulfate Common Name
- Sulfuric acid potassium salt (1:2) Synonym
- Sulfuric acid dipotassium salt Synonym
- Potassium sulfate (2:1) Synonym
- Arcanum duplicatum Synonym
- Potassium sulfate Synonym
- Sal polychrestum Synonym
- Tartarus vitriolatus Synonym
- Dipotassium sulfate Synonym
- Potassium sulfate (K2(SO4)) Synonym
- Potassium sulphate Synonym
- Potassium sulfate (K2SO4) Synonym
- Sulfuric acid, dipotassium salt Synonym
- Sulfate of potash Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 176.27 g/mol | CAS Common Chemistry |
| 176.27499999999998 g/mol | RDKit | |
| 176.275 g/mol | RDKit | |
| 178.284 g/mol | chempirical lib | |
| Density | 2.66 g/cm³ | CAS Common Chemistry |
| 2.66 g/cm3 | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Potassium_sulfate | CAS Common Chemistry |
| Boiling Point | 1689 °C | CAS Common Chemistry |
| Canonical SMILES | [K].O=S(=O)(O)O | CAS Common Chemistry |
| InChI | InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4) | CAS Common Chemistry |
| InChI Key | InChIKey=RELBRYJDPFWCIM-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 1067 °C | CAS Common Chemistry |
| Name | Potassium sulfate | 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 | 74.60000000000001 Ų | RDKit |
| 74.6 Ų | RDKit | |
| LogP | -1.4143999999999997 | RDKit |
| -1.4144 | RDKit | |
| Molar Refractivity | 25.6854 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 0.0 | RDKit |
| Exact Mass | 175.894792904 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
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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.
External Resources
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Quick conversion
MW = 176.27 g/mol; density = 2.660 g/mL. Edit any field — others recompute live.
