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Molecule
Potassium Nitrite
CAS: 7758-09-0 · HKNO2
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 7758-09-0
- Molecular Formula
- HKNO2
- Molecular Mass
- 86.11 g/mol
Identifiers
CAS Registry Number
7758-09-0
SMILES
O=NO.[K]
InChI Key
LEMJDBDGPTVGML-UHFFFAOYSA-N
InChI
InChI=1S/K.HNO2/c;2-1-3/h;(H,2,3)
Names and Synonyms
- Potassium Nitrite Synonym
- Nitrous acid, potassium salt (1:1) Synonym
- Nitrous acid, potassium salt Synonym
- Potassium nitrite Synonym
- Klear Synonym
- E 249 Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 86.11 g/mol | CAS Common Chemistry |
| 86.111 g/mol | RDKit | |
| 87.119 g/mol | chempirical lib | |
| Density | 1.92 g/cm³ | CAS Common Chemistry |
| 1.915 g/cm3 | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Potassium_nitrite | CAS Common Chemistry |
| Canonical SMILES | [K].O=NO | CAS Common Chemistry |
| InChI | InChI=1S/K.HNO2/c;2-1-3/h;(H,2,3) | CAS Common Chemistry |
| InChI Key | InChIKey=LEMJDBDGPTVGML-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 441 °C (decomp) | CAS Common Chemistry |
| Name | Potassium nitrite | CAS Common Chemistry |
| Heavy Atom Count | 4 | RDKit |
| Hydrogen Bond Acceptors | 2 | RDKit |
| Hydrogen Bond Donors | 1 | RDKit |
| Rotatable Bonds | 0 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 49.66 Ų | RDKit |
| LogP | -0.2388 | RDKit |
| Molar Refractivity | 13.3355 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 0.0 | RDKit |
| Exact Mass | 85.964434952 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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MW = 86.11 g/mol; density = 1.920 g/mL. Edit any field — others recompute live.
