Sodium nitrite (NaNO₂) is an inorganic ionic compound classified as a semiconductor material, consisting of sodium and nitrite ions in a crystalline lattice structure. While traditionally known as a food preservative and industrial chemical, NaNO₂ has emerged in materials research for potential applications in energy storage, ionic conductivity studies, and solid-state electrochemistry, where its layered crystal structure and moderate mechanical properties make it a candidate for investigating ion transport phenomena and battery electrolyte materials. Engineers considering this material should recognize it primarily as a specialty chemical rather than a structural or high-performance engineering material, though its semiconductor behavior presents research opportunities in niche electrochemical applications.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 32.71 | GPa | DFT · OptB88vdW | ||
Exfoliation Energy(Eexf) | 199.2 | meV/atom | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.3200 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 14.75 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.184 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 3.020 | eV | Measured | ||
| ↳ | 2.000 | eV | DFT · OptB88vdW | ||
| ↳ | 3.625 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 6.203 | - | DFT · OptB88vdW | ||
| ↳ | 5.270 | - | DFT · PBE | ||
| ↳ | 3.707 range 2.277–5.138median of 2 measurements | - | DFT · PBEsol | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 2.918 | - | DFT · OptB88vdW | ||
| ↳ | 2.227 | - | DFT · TBmBJ | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.7128 | C/m² | DFT · OptB88vdW | ||
| ↳ | 0.07468 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.8200 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00890 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.9565 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data