Sodium Bicarbonate
Synonyms: Baking Soda, Sodium Hydrogen Carbonate
CAS No.: 144-55-8
Molecular Formula: NaHCO₃
Molecular Weight: 84.01 g/mol
1. Product Description
Sodium Bicarbonate is a white crystalline powder with a mildly alkaline taste. It is widely used in food, pharmaceuticals, animal feed, water treatment, and industrial processes. It serves as a buffering agent, neutralizer, leavening agent, and mild cleaning agent.
2. Specifications
| Parameter | Food Grade | Industrial Grade |
|---|
| Appearance | White crystalline powder | White crystalline powder |
| Assay (as NaHCO₃, %) | ≥ 99.0 | ≥ 98.0 |
| pH (1% solution) | 8.4 – 8.6 | 8.2 – 8.6 |
| Loss on Drying (% @150°C, 4h) | ≤ 0.25 | ≤ 0.4 |
| Chloride (as Cl⁻, %) | ≤ 0.4 | ≤ 0.5 |
| Arsenic (As, ppm) | ≤ 1.0 | ≤ 2.0 |
| Heavy Metals (as Pb, ppm) | ≤ 5 | ≤ 10 |
| Iron (Fe, ppm) | ≤ 5 | ≤ 20 |
| Insoluble Matter in Water | ≤ 0.05 % | ≤ 0.1 % |
| Ammonium (NH₄⁺) | ≤ 20 ppm | ≤ 50 ppm |
| Whiteness (%) | ≥ 95 | ≥ 90 |
| Particle Size (mesh) | 80–200 mesh (customizable) | 80–200 mesh (customizable) |
| Total Plate Count (cfu/g) | ≤ 1000 | — |
| Yeast & Mold (cfu/g) | ≤ 100 | — |
| Pathogens (E. coli, Salmonella) | Negative | — |
3. Applications
Food Industry: Leavening agent, pH regulator, anti-caking agent, effervescent formulations
Pharmaceuticals: Antacid, buffering agent, ingredient in effervescent tablets
Animal Feed: Source of sodium and buffer for rumen pH
Industrial Uses: Water treatment, textile dyeing, flue gas desulfurization, detergents, fire extinguishers
Household Uses: Cleaning agent, deodorizer, personal care
4. Physical & Chemical Properties
| Property | Value |
|---|
| Appearance | White crystalline or fine powder |
| Odor | Odorless |
| Taste | Slightly alkaline |
| Solubility | Soluble in water; insoluble in alcohol |
| Density (bulk) | 1.0 – 1.2 g/cm³ |
| Decomposition Temperature | ~50 °C (releases CO₂) |
| pH (1% solution) | 8.4 |
| Stability | Stable under dry conditions; decomposes in heat or acid |
5. Storage & Handling
Store in a cool, dry, and well-ventilated area.
Protect from moisture, acids, and direct sunlight.
Keep packaging tightly sealed.
Shelf Life: 24 months under proper storage.
6. Packaging
| Grade | Packaging |
|---|
| Food Grade | 25 kg paper or PE-lined woven bag, 50 lb kraft bag |
| Industrial Grade | 25 kg / 50 kg woven bag or bulk jumbo bag |
| Customized packaging | Available on request |
7. Safety Information
Hazard Classification: Non-toxic, non-flammable, non-corrosive
Handling: Avoid inhalation of dust; use normal hygiene measures.
Spillage: Sweep and collect; rinse area with water.
Environmental: Safe for disposal in normal wastewater treatment systems.
For more information, please visit this website：https://www.khonorchem.com
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