- InChI
- InChI=1S/Na
- InChI Key
- KEAYESYHFKHZAL-UHFFFAOYSA-N
- Formula
- Na
- SMILES
- [Na]
- Molecular Weight1
- 22.99
- CAS
- 7440-23-5
- Other Names
-
- NATRIUM
- EA : Electron affinity (eV).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- IE : Ionization energy (eV).
- NFPA Fire : NFPA Fire Rating.
- NFPA Health : NFPA Health Rating.
- Pvap : Vapor pressure (kPa).
- S°gas,1 bar : Molar entropy at standard conditions (1 bar) (J/mol×K).
- S°solid,1 bar : Solid phase molar entropy at standard conditions (J/mol×K).
- Tboil : Normal Boiling Point Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Ttriple : Triple Point Temperature (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| EA | 0.55 ± 0.00 | eV | NIST |
| ΔfH°gas | 107.50 ± 0.70 | kJ/mol | NIST |
| IE | [5.14; 5.60] | eV |
|
| IE | 5.14 | eV | NIST |
| IE | 5.14 | eV | NIST |
| IE | 5.14 | eV | NIST |
| IE | 5.14 ± 0.04 | eV | NIST |
| IE | 5.20 | eV | NIST |
| IE | 5.60 ± 0.30 | eV | NIST |
| IE | 5.60 ± 0.20 | eV | NIST |
| IE | 5.30 ± 0.20 | eV | NIST |
| IE | 5.14 | eV | NIST |
| NFPA Fire | 1 | KDB | |
| NFPA Health | 3 | KDB | |
| S°gas,1 bar | 153.72 ± 0.00 | J/mol×K | NIST |
| S°solid,1 bar | 51.30 ± 0.20 | J/mol×K | NIST |
| Tboil | 1156.00 ± 1.00 | K | NIST |
| Tfus | 370.96 ± 0.01 | K | NIST |
| Ttriple | 370.98 ± 0.03 | K | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.00e-03; 149.99] | kPa | [553.75; 1200.00] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.48762e+01 | |||
| Coefficient B | -1.16533e+04 | |||
| Coefficient C | -1.88000e+01 | |||
| Temperature range, min. | 553.75 | |||
| Temperature range, max. | 1200.00 | |||
| Pvap | 1.00e-03 | kPa | 553.75 | Calculated Property |
| Pvap | 0.01 | kPa | 625.56 | Calculated Property |
| Pvap | 0.10 | kPa | 697.36 | Calculated Property |
| Pvap | 0.52 | kPa | 769.17 | Calculated Property |
| Pvap | 2.02 | kPa | 840.97 | Calculated Property |
| Pvap | 6.30 | kPa | 912.78 | Calculated Property |
| Pvap | 16.61 | kPa | 984.58 | Calculated Property |
| Pvap | 38.29 | kPa | 1056.39 | Calculated Property |
| Pvap | 79.20 | kPa | 1128.19 | Calculated Property |
| Pvap | 149.99 | kPa | 1200.00 | Calculated Property |
Sources
- Mass spectrometric study of the vaporization behaviour of alpha-Na2NpO4: Thermodynamic investigation of the enthalpy of formation
- Thermodynamic investigation of Na2U2O7 using Knudsen effusion mass spectrometry and high temperature X-ray diffraction
- Synthesis and energetics of Na, K, Rb and Cs salts by reaction with 1,2-ethanediol and 1,4-butanediol
- Thermodynamic study of Cs3Na(MoO4)2: Determination of the standard enthalpy of formation and standard entropy at 298.15 K
- Thermochemical properties of two mixed alkali-alkaline earth metal borates with NLO properties for NaCaBO3 and Li4CaB2O6
- Low temperature heat capacities and standard molar enthalpy of formation of sodium benzoate C6H5COONa (s)
- Standard Molar Enthalpies of Formation for the Two Mixed Alkali-Alkaline Earth Metal Borates of LiBaB9O15 and NaBaB9O15
- KDB
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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