Other Names:
Soda Ash, Calcined Soda, Disodium Carbonate, Carbonic Acid Disodium Salt
Specification Summary
- Purity: ≥99.5%
- Form: White crystalline powder (Light), Granulated white powder (Dense)
- CAS No.: 497-19-8
- Molecular Formula: Na₂CO₃
- Molecular Weight: 106
Product Description
Sodium carbonate is a white, odorless, and hygroscopic solid. It is highly soluble in water (22 g/100 mL at 20°C), slightly soluble in glycerin, and insoluble in ethanol. The compound is strongly alkaline (aqueous solution pH ≈ 11.2), exhibits mild corrosivity, and is stable under normal conditions. Exposure to air can cause absorption of moisture and CO₂, leading to caking and formation of sodium bicarbonate.
Sodium Carbonate Specification Table
| Property | Light Soda Ash | Dense Soda Ash |
| Appearance | White crystalline powder | Granulated white powder |
| Purity (as Na₂CO₃, %) | ≥99.5 | ≥99.5 |
| Bulk Density (kg/m³) | 450–650 | 1000–1200 |
| pH (10g/L, 20°C) | 11.2 | 11.2 |
| Solubility in Water | 22 g/100 mL (20°C) | 22 g/100 mL (20°C) |
| Loss on Drying (%) | ≤1 | ≤0.8 |
| NaCl Content (%) | ≤0.25 | ≤0.25 |
| Particle Size (mm) | ~0.09 | Granular |
| Fe Content (mg/kg) | ≤25 | ≤25 |
| Heavy Metals (mg/kg) | ≤10 | ≤10 |
Downloadable TDS:
Technical Data Sheets are available upon request for both light and dense grades.
Application Sectors and Industries of Sodium Carbonate
Glass Manufacturing
Sodium carbonate is a primary ingredient in glass production, lowering the melting point of silica and improving workability for sheet, container, and specialty glass.
Detergents and Cleaning Agents
Used as a builder in detergents, it enhances cleaning efficiency by softening water and emulsifying oils and grease.
Water Treatment
Acts as a water softener and pH regulator, precipitating calcium and magnesium ions to reduce water hardness and control alkalinity.
Pulp and Paper
Serves as a pulping agent and pH buffer, facilitating the breakdown of lignin and improving paper whiteness and quality.
Food Industry
Functions as a food additive (E500i), pH regulator, and processing aid in baking, cocoa processing, and beverage production.
Chemical Manufacturing
Used as a raw material in the production of sodium silicates, phosphates, and other sodium-based chemicals.
Textile Processing
Employed in dyeing and finishing processes to control pH and improve dye uptake and color fastness.
Metallurgy
Assists in ore processing, smelting, and refining by acting as a flux to remove impurities and control slag viscosity.
Oil & Gas Drilling
Regulates pH in drilling fluids, prevents corrosion, and improves the performance of mud systems.
Pharmaceuticals
Used as a buffering agent and in the synthesis of various pharmaceutical compounds.
Soap and Personal Care
Enhances saponification in soap making and acts as a mild abrasive in toothpaste formulations.
Environmental Applications
Neutralizes acidic waste streams and flue gases, aiding in pollution control and environmental remediation.
Packaging Types
- 25 kg Paper Bags:
- Moisture-resistant, suitable for manual handling and smaller-scale use.
- 50 kg Polypropylene Bags:
- Durable and cost-effective for bulk distribution.
- 1 MT Jumbo Bags (FIBC):
- Ideal for large-scale industrial applications and efficient storage.
- Bulk Tanker Loads:
- For high-volume, continuous industrial consumption.
- Shrink-wrapped Pallets:
- Ensures stability and protection during transit and storage.
For detailed technical data and safety information, please request the downloadable TDS specific to your applicatio
