Sodium Bicarbonate
Sodium Hydrogen Carbonate, Baking Soda
- CAS
- 144-55-8
- EC
- 205-633-8
- Food Code
- E500
- Sectors
- Food & Nutrition, Pharma & Healthcare
Sodium Bicarbonate (CAS 144-55-8), also known as sodium hydrogen carbonate or baking soda, is a white crystalline powder or granule that releases carbon dioxide when it meets acids, and it is used for buffering, leavening in baking powders and antacid effervescent tablets.
Typical Properties
| Molecular formula | CH2O3.Na |
|---|---|
| Molecular weight | 84.01 g/mol |
| Appearance | white powder or crystals |
| Form | solution (7.5%) |
| Color | White |
| Odor | Odorless |
| Melting point | 270 °C |
| Boiling point | 851°C |
| Density | 2.159 g/cm³ |
| Water solubility | 9 g/100 mL (20 °C) |
| pH | 8.3 (0.1molfreshly prepared) |
| HS code | 28363000 |
| Grades available | Food Grade, Pharma Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Sodium Bicarbonate
Applications
In effervescent tablets for antacids; in baking powders for rise; in fire extinguishers for class B fires; in hemodialysis for alkalization; and in flue gas scrubbing for SO2 removal in emissions control.
Safety & Risks
Systemic alkalosis from overuse; dust explosive in confined spaces. Inhalation irritant; deploy antistatic measures and use bicarbonate-compatible respirators in silos.
Packaging
Supplied in 50 kg laminated polypropylene supersacks. Bulk in dry bulk terminals with pneumatic unloading.