Sodium carbonate
CAS Number: 497-19-8
Chemical Formula: Na2CO3
Synonyms: ASH, SODA ASH, ODA ASH
Appearance: White powder
HS Code: 2836200000
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Sodium carbonate (497-19-8), with the formula Na2CO3, is the sodium salt derived from carbonic acid. The pure material is a white, odorless powder featuring a pronounced alkaline taste. It exhibits strong hygroscopic properties and dissolves easily in water to form a moderately alkaline aqueous solution. Sodium carbonate is widely used across numerous industrial sectors worldwide. One of its most vital applications is in glass manufacturing; statistics show roughly half the global sodium carbonate output goes into glass production. In glass making, sodium carbonate serves as a flux for silica melting. As a powerful chemical base, it is also employed in pulp and paper, textiles, drinking water treatment, soaps and detergents, and drain cleaning products. Additional uses include tissue digestion, dissolving amphoteric metals and compounds, food preparation, and acting as a general cleaning agent.
Parameters
| Parameter | Value |
| Melting point | 851 °C (lit.) |
| Boiling point | 1600°C |
| density | 2.53 |
| bulk density | 1100kg/m3 |
| refractive index | 1.535 |
| storage temp. | 15-25°C |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| color | White |
| Specific Gravity | 2.532 |
| Odor | at 100.00?%. odorless |
| Flame Color | Yellow |
| PH | 10.52(1 mM solution);10.97(10 mM solution);11.26(100 mM solution); |
| pka | (1) 6.37, (2) 10.25 (carbonic (at 25℃) |
| Water Solubility | 22 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| λmax | λ: 260 nm Amax: 0.01 λ: 280 nm Amax: 0.01 |
| Merck | 14,8596 |
| BRN | 4154566 |
| Dielectric constant | 5.3（Ambient） |
| Stability: | Stable. Incompatible with powdered alkaline earth metals, aluminium, organic nitro compounds, fluorine, alkali metals, nonmetallic oxides, concentrated sulfuric acid, oxides of phosphorus. |
| InChIKey | CDBYLPFSWZWCQE-UHFFFAOYSA-L |
| CAS DataBase Reference | 497-19-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium carbonate(497-19-8) |
| EPA Substance Registry System | Sodium carbonate (497-19-8) |
Safety Information
| Item | Details |
| Hazard Codes | Xn,Xi |
| Risk Statements | 32-36-51/53-36/37/38-41-37/38 |
| Safety Statements | 36/37-26-22-36-39 |
| WGK Germany | 2 |
| RTECS | XN6476000 |
| F | 3 |
| TSCA | Yes |
| HS Code | 28362000 |
| Hazardous Substances Data | 497-19-8(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 4090 mg/kg |
Product Application of Sodium carbonate CAS#497-19-8
Sodium Carbonate is an alkaline material available in crystal or crystalline powder form that dissolves easily in water. It serves many functions: antioxidant, curing and pickling agent, flavoring agent, processing aid, sequestrant, and pH control agent. It is used in instant soups to neutralize acidity. It helps sequester calcium in alginate water dessert gels, letting the alginate dissolve properly. It is also widely used in puddings, sauces, and a variety of baked food products.
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