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Molecule
Potassium Nitrate
CAS: 7757-79-1 · HKNO3
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 7757-79-1
- Molecular Formula
- HKNO3
- Molecular Mass
- 102.11 g/mol
Identifiers
CAS Registry Number
7757-79-1
SMILES
O=[N+]([O-])O.[K]
InChI Key
IRPDISVJRAYFBI-UHFFFAOYSA-N
InChI
InChI=1S/K.HNO3/c;2-1(3)4/h;(H,2,3,4)
Names and Synonyms
- Potassium Nitrate Synonym
- Nitric acid potassium salt (1:1) Synonym
- Nitric acid potassium salt Synonym
- Potassium nitrate (1:1) Synonym
- Nitre Synonym
- Niter Synonym
- Potassium nitrate Synonym
- Saltpeter Synonym
- Collo-Bo Synonym
- Nitric acid, potassium salt Synonym
- E 252 Synonym
- Krista K Synonym
- Krista K Plus Synonym
- Nitrokalite Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 102.11 g/mol | CAS Common Chemistry |
| 102.11000000000001 g/mol | RDKit | |
| 103.118 g/mol | chempirical lib | |
| Density | 2.11 g/cm³ | CAS Common Chemistry |
| 2.109 g/cm3 @ 16 °C | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Potassium_nitrate | CAS Common Chemistry |
| Canonical SMILES | [K].O=N(=O)O | CAS Common Chemistry |
| InChI | InChI=1S/K.HNO3/c;2-1(3)4/h;(H,2,3,4) | CAS Common Chemistry |
| InChI Key | InChIKey=IRPDISVJRAYFBI-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 334 °C | CAS Common Chemistry |
| Name | Potassium nitrate | CAS Common Chemistry |
| Heavy Atom Count | 5 | RDKit |
| Hydrogen Bond Acceptors | 2 | RDKit |
| Hydrogen Bond Donors | 1 | RDKit |
| Rotatable Bonds | 0 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 63.370000000000005 Ų | RDKit |
| 63.37 Ų | RDKit | |
| 58.53 Ų | chempirical lib | |
| LogP | -0.7285000000000001 | RDKit |
| -0.7285 | RDKit | |
| Molar Refractivity | 14.5349 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 0.0 | RDKit |
| Exact Mass | 101.95934957200001 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
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8
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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 = 102.11 g/mol; density = 2.110 g/mL. Edit any field — others recompute live.
