Sodium Carbonate CAS#497-19-8
Sodium carbonate (Na₂CO₃), commonly known as soda ash, is a widely used chemical compound with applications across a variety of industries. It plays an important role in numerous chemical processes and manufacturing operations.
| Melting point | 851 °C (lit.) |
| Boiling point | 1600°C |
| Density | 2.53 |
| Bulk density | 1100kg/m3 |
| Refractive index | 1.535 |
| Storage conditions | 15-25℃ |
| Solubility | H20:1 Mat 20 °C,Transparent, colorless |
| Form | solid |
| Specific gravity | 2.532 |
| Color | White |
| Flame color | Yellow |
| Odor | Tasteless |
| pH value | 10.52(1 mM solution);10.97(10 mM solution);11.26(100 mM solution); |
| Acidity constant (pKa) | (1) 6.37, (2) 10.25 (carbonic (at 25C) |
| Water solubility | 22 g/100 mL (20 °C) |
| Specific heat capacity | Cp(crystal): 1.06 J/(g-K), at 25℃ |
| Sensitivity | Hygroscopic |
| Wavelength of maximum absorption (λmax) | λ: 260 nm Amax: 0.01 λ: 280 nm Amax: 0.01 |
| Merck | 148,596 |
| BRN | 4154566 |
| Dielectric constant | 5.3(Ambient) |
| Exposure limits | PC-TWA: 3 mg/m3; PC-STEL: 6 mg/m3 |
| Stability | Stable. Incompatible with powdered alkaline earth metals, aluminum, organic nitro compounds, fluorine, alkali metals, non-metal oxides, concentrated sulfuric acid, and phosphorus oxides. |
| Cosmetic ingredient function | pH Regulation Muscle building |
| InChI | 1S/CH2O3.2Na/c2-1(3)4;/h(H2,2,3,4);;/q;2*+1/p-2 |
| InChIKey | CDBYLPFSWZWCQE-UHFFFAOYSA-L |
| SMILES | O=C(O[Na])O[Na] |
Applications of Sodium Carbonate
Sodium carbonate is valued for its versatility and is widely used across various industries:
Glass Manufacturing: Serves as a flux to lower the melting point of silica, facilitating glass production.
Textile and Paper Industries: Used in the production of paper and detergents, as well as in fabric softening applications.
Water Treatment: Helps neutralize acidic water and regulate pH levels.
Food Industry: Functions as a leavening agent and is used in the production of sodium bicarbonate.
Chemical Manufacturing: Serves as an important raw material in the synthesis of various chemicals, including sodium carbonate peroxide.
