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Molecule
Potassium Alum
CAS: 10043-67-1 · H2AlKO4S
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 10043-67-1
- Molecular Formula
- H2AlKO4S
- Molecular Mass
- 164.16 g/mol
Identifiers
CAS Registry Number
10043-67-1
SMILES
O=S(=O)(O)O.[Al].[K]
InChI Key
VWRKUHIZDIMTAF-UHFFFAOYSA-N
InChI
InChI=1S/Al.K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)
Names and Synonyms
- Potassium Alum Common Name
- Sulfuric acid, aluminum potassium salt (2:1:1) Synonym
- Aluminum potassium sulfate (AlK(SO4)2) Synonym
- Aluminum potassium sulfate Synonym
- Alum potassium Synonym
- Burnt alum Synonym
- Exsiccated alum Synonym
- Potassium aluminum sulfate Synonym
- Potassium alum Synonym
- Alum Synonym
- Aluminum potassium alum Synonym
- Aluminum potassium disulfate Synonym
- Dialuminum dipotassium sulfate Synonym
- Potash alum Synonym
- Potassium aluminum sulfate (1:1:2) Synonym
- Aluminum potassium sulfate (KAl(SO4)2) Synonym
- Aluminum potassium sulfate alum Synonym
- Potassium aluminum alum Synonym
- Burnt potassium alum Synonym
- Tai-Ace K 20 Synonym
- Tai-Ace K 150 Synonym
- Aluminium potassium bis(sulfate) Synonym
- Conheal Synonym
- Inheal Synonym
- Algypo DS 103 Synonym
- EA-L Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 164.16 g/mol | CAS Common Chemistry |
| 164.159 g/mol | RDKit | |
| 168.184 g/mol | chempirical lib | |
| Density | 1.73 g/cm³ | CAS Common Chemistry |
| 1.725 g/cm3 | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Potassium_alum | CAS Common Chemistry |
| Canonical SMILES | [Al].[K].O=S(=O)(O)O | CAS Common Chemistry |
| InChI | InChI=1S/Al.K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4) | CAS Common Chemistry |
| InChI Key | InChIKey=VWRKUHIZDIMTAF-UHFFFAOYSA-N | CAS Common Chemistry |
| Name | Potassium alum | 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 | 163.912624854 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
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| Shift (ppm) | Multiplicity | Integration | Assignment |
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200 ppm
180
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20
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| Shift (ppm) | DEPT | Assignment |
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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 = 164.16 g/mol; density = 1.730 g/mL. Edit any field — others recompute live.
