Sodium carbonate, Dense
General Product Information
| Article | Sodium carbonate, Dense |
| Synonyms | Soda (dense), Soda ash, Washing soda, Soda crystals, Sodium trioxocarbonate |
| CAS No. | 497-19-8 |
| EEG No. | 011-005-00-2 |
| EINECS No. | 207-838-8 |
| IMO | – |
| Tariff Code | 28362000 |
| UN No. | – |
| VLG/ADR | – |
Description
Sodium carbonate (dense) is an alkaline inorganic salt. It is a white, crystalline powder that is odorless, non-flammable and chemically stable. This “heavy” variant is characterized by a higher bulk density and larger particle size compared to
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: White.
- Grade: Technical.
- Solubility: Highly soluble in water; insoluble in ethanol….
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | Na2CO3 |
| Molar Weight | 105.99 g/mol |
| Melting Point | 851 °C |
| Boiling Point | – |
| Density | Approx. 1.0 g/cm³ (heavy type) |
| Refractive Index | – |
| pH | Approx. 11.4 (on 1% solution). |
Interessing Links
- CAS Common Chemistry – Sodium Carbonate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Sodium Carbonate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Sodium carbonate
Applications
Sodium carbonate (heavy) is applied in various ways, for instance:
1. Chemical Industry
It serves as a raw material at the synthesis of sodium bicarbonate, sodium hydroxide and various other inorganic salts.
2. Glass Industry
Used as a fluxing agent at the production of flat glass, packaging glass and glass fiber. It lowers the Melting Point of silica and improves the efficiency of the production process.
3. Cleaning Agents
An ingredient in laundry powders and industrial cleaners because of its water-softening properties and pH regulation.
4. Paper Industry
Used as pH buffer at de-inking and bleaching of paper.
5. Textile Industry
It is used at bleaching and dyeing of fabrics and to fix dyes on natural fibers.
6. Water Treatment
For increasing pH levels in drinking and process water systems.