Sodium carbonate CAS#497-19-8
High Solubility and Effective Alkalinity – Easily dissolves in water to form a moderately alkaline solution, providing efficient pH control and cleaning performance.
Essential Flux for Glass Manufacturing – Acts as a key flux in silica melting, with about half of global production used in glass production, ensuring high industrial demand and proven reliability.
Wide Industrial Versatility – Broadly applied in pulp and paper, textiles, water treatment, soaps, detergents, and drain cleaning, making it a multi-purpose basic chemical.
Strong Reactivity and Cleaning Power – As a strong alkaline compound, it effectively digests tissues, dissolves amphoteric metals and compounds, and functions as an efficient cleaning and processing agent.
Product Description of Sodium Carbonate (CAS No. 497-19-8)
Sodium Carbonate (Na₂CO₃) is the sodium salt of carbonic acid, supplied as a white, odorless powder with a distinctly alkaline taste and strong hygroscopic properties. It dissolves readily in water to form a moderately alkaline solution, making it a highly effective and versatile basic chemical.
Sodium Carbonate is extensively used across a wide range of industries worldwide. Approximately half of global production is consumed in glass manufacturing, where it functions as a flux to lower the melting point of silica and improve melting efficiency. As a strong alkali, it is also widely applied in pulp and paper processing, textile production, drinking water treatment, soap and detergent manufacturing, and as a drain cleaning agent.
In addition, Sodium Carbonate is used in tissue digestion, the dissolution of amphoteric metals and compounds, food processing, and as a general-purpose cleaning and processing chemical.
Parameters
| 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 | 148,596 |
| 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
| 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 No. 497-19-8)
Sodium Carbonate is an alkaline compound supplied as crystals or crystalline powder that dissolves easily in water. In the food industry, it performs multiple functions, including acting as an antioxidant, curing and pickling agent, flavoring aid, processing auxiliary, sequestrant, and pH regulator. It is commonly added to instant soups to neutralize excess acidity and improve taste.
In addition, Sodium Carbonate is used in alginate-based dessert gels to bind calcium ions, allowing the alginate to dissolve properly and form stable gels. It is also widely applied in the preparation of puddings, sauces, and baked products to adjust acidity and enhance processing performance.
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