Sodium Chloride CAS#7647-14-5
Sodium chloride occurs widely in nature, with seawater being its main reservoir. The average concentration of sodium chloride in seawater reaches 2.68 wt%. It is also present in numerous inland brines and salt deposits embedded in sedimentary rocks, where it exists as the mineral halite. Sodium chloride is arguably the most significant salt of sodium and chlorine. As everyday table salt, it is an indispensable food additive that boosts flavour and supplies nutritionally essential sodium.
Sodium chloride Chemical Properties
| Melting point | 801 °C (lit.) |
| Boiling point | 1465 °C/1 atm (lit.) |
| bulk density | 1140kg/m3 |
| density | 1.199 g/mL at 20 °C |
| vapor pressure | 1 mm Hg ( 865 °C) |
| refractive index | n |
| Fp | 1413°C |
| storage temp | +15C to +30C |
| solubility | H2O: soluble |
| form | tablets |
| color | White |
| Specific Gravity | 2.165 |
| PH | 5.5-6.5(1 tablet in 100 mL purified water) |
| Flame Color | Orange |
| Water Solubility | 360 g/L (20 ºC) |
| λmax | λ: 260 nm Amax: 0.02 λ: 280 nm Amax: 0.01 |
| Sensitive | Hygroscopic |
| Crystal Structure | NaCl type |
| crystal system | Cube |
| Merck | 14,8599 |
| BRN | 3534976 |
| Space group | Fm3m |
| Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.5640.5640.5649090900.17942 |
| Dielectric constant | 5.9（Ambient） |
| BCS Class | 1 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | FAPWRFPIFSIZLT-UHFFFAOYSA-M |
| CAS DataBase Reference | 7647-14-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium chloride(7647-14-5) |
| EPA Substance Registry System | Sodium chloride (7647-14-5) |
| Absorption | ≤0.01 at 260 ≤0.01 at 280 in H2O at 1M |
