Sodium Bicarbonate E500(ii)
Sodium Bicarbonate, also known as baking soda or sodium hydrogen carbonate, is a key food-grade alkaline ingredient used in bakery, premix, batter, confectionery and processed-food systems. It is primarily selected for carbon dioxide release, dough aeration, batter lift, pH control, acidity regulation and predictable leavening performance. This page supports industrial buyers, R&D teams, QA departments and import managers with practical technical information for specification review, documentation collection and quotation requests.
Product identity
| Product name | Sodium Bicarbonate |
|---|---|
| Common names | Baking soda, sodium hydrogen carbonate, bicarbonate of soda |
| Chemical formula | NaHCO3 |
| CAS number | 144-55-8 |
| E / INS number | E500(ii) / INS 500(ii) |
| Category | Leavening, Raising & Dough Systems |
| Primary function | Raising agent, leavening base, acidity regulator and pH control ingredient |
| Typical appearance | White crystalline powder or fine granular grade |
| Typical handling form | Free-flowing powder for dry blending, direct dosing or solution preparation |
Application fit
Food-grade Sodium Bicarbonate is commonly evaluated in applications where controlled gas release, neutralization or pH adjustment is required. Potential use areas may include:
- Cakes, muffins, sponge systems and chemically raised bakery products
- Biscuits, cookies, crackers and wafers
- Pancake, waffle, donut, batter and dry premix systems
- Tortillas, flatbreads and industrial dough systems
- Confectionery, caramel, cocoa and selected pH-sensitive food processes
- Effervescent dry blends and instant food preparations where permitted
Technical overview for industrial buyers
Sodium Bicarbonate is one of the most important alkaline components used in chemical leavening systems. When it reacts with suitable food acids in the presence of moisture and heat, it releases carbon dioxide gas. This gas expands during mixing, proofing, frying or baking and contributes to volume, crumb structure, porosity, bite and eating quality. The performance of Sodium Bicarbonate depends on its assay, particle size, reaction rate, distribution in the mix, acid balance, moisture level, temperature profile and processing time.
For purchasing and quality teams, Sodium Bicarbonate should not be evaluated only by price per kilogram. Industrial performance depends on the consistency of assay, alkalinity, particle size distribution, flowability, caking behavior, impurity profile, packaging integrity and documentation. A low-cost material with inconsistent particle size or weak moisture protection can create process variation, poor dry-mix homogeneity, uneven gas release, product defects or customer complaints.
Functional role in formulation
- Carbon dioxide release: reacts with food acids to produce gas for batter and dough expansion.
- pH adjustment: increases pH and helps neutralize acidic components in selected food systems.
- Leavening balance: works with acidulants such as SAPP, MCP, SALP, GDL, citric acid or acidic dairy ingredients.
- Texture development: supports controlled cell structure, crumb softness, spread, bite and internal porosity.
- Color influence: final pH can affect browning, surface color and product appearance during baking.
- Process consistency: controlled grade selection can reduce batch-to-batch variation in industrial production.
Key buying parameters
| Grade | Food grade; confirm compliance with buyer specification and destination-market rules |
|---|---|
| Assay | Request NaHCO3 assay and test method on specification and COA |
| Neutralizing value | Important for balancing leavening acids and avoiding residual alkalinity |
| Particle size | Critical for dry blending, reaction speed, dispersion, dusting and homogeneity |
| Moisture | Low and controlled moisture helps maintain flowability and storage stability |
| Bulk density | Relevant for dosing equipment, premix volume, bag yield and silo handling |
| Heavy metals | Request lead, arsenic, mercury, cadmium or other limits required by the destination market |
| Packaging | Commonly supplied in multiwall bags, PE-lined bags, big bags or palletized export packaging |
Industrial application notes
In bakery production, Sodium Bicarbonate is normally formulated together with one or more leavening acids. Fast-acting acids may release carbon dioxide during mixing, while slow-acting or heat-activated acids may release gas during baking. The correct balance is essential for batter viscosity, pan flow, oven spring, crumb openness, surface color and final eating quality. Industrial bakeries often adjust Sodium Bicarbonate dosage according to flour quality, acidic ingredients, sugar level, fat level, water activity, baking temperature and line speed.
In biscuits and crackers, Sodium Bicarbonate can influence spread, surface texture, browning and crispness. In cakes and muffins, it helps develop lift and open structure when properly balanced with acidic components. In pancake and waffle mixes, particle size and distribution are especially important because the consumer or foodservice operator may add water or milk shortly before cooking. In dry premixes, poor blending or particle segregation can cause inconsistent gas release from one package to another.
For tortilla, flatbread and dough applications, Sodium Bicarbonate may be evaluated for pH control, dough relaxation and surface characteristics depending on the full formulation. In confectionery and cocoa-related applications, it can be used to influence acidity, color and processing behavior where allowed. In every case, pilot trials and final product testing are recommended before changing supplier, grade, dosage or particle size.
Leavening system design
- Define target product volume, crumb structure, surface color and sensory profile.
- Calculate acid-base balance using the neutralizing value of the selected leavening acid.
- Confirm whether gas release is needed during mixing, resting, frying, baking or reheating.
- Select particle size according to dry blend homogeneity, reaction speed and equipment limitations.
- Validate formula performance under real plant conditions, not only laboratory mixing.
- Monitor finished product pH to reduce risk of residual alkalinity or acidic aftertaste.
Process and handling considerations
- Keep bags sealed and protected from moisture, condensation and high humidity.
- Use dust-control measures during bag opening, dumping, conveying and weighing.
- Avoid direct uncontrolled contact with strong acids before intended mixing or processing.
- For dry mixes, validate segregation risk when particle size or density differs from other ingredients.
- Check compatibility with automated dosing, screw feeders, silos and pneumatic conveying systems.
- Store away from strong odors and incompatible chemicals in a clean, dry food-ingredient warehouse.
Quality control checkpoints
Food manufacturers typically evaluate Sodium Bicarbonate through both chemical and physical parameters. Chemical purity confirms identity and compliance, while physical properties influence production behavior. For high-volume plants, the most valuable supplier is usually the one that can deliver repeatable assay, particle size and packaging quality across multiple lots.
Typical laboratory checks
- Appearance, color and foreign matter inspection
- Assay or purity as NaHCO3
- Alkalinity or neutralizing value confirmation
- Moisture or loss on drying
- Water-insoluble matter
- Chloride, sulfate or other impurity limits where specified
- Heavy metals according to buyer and market requirements
- Lot number, manufacturing date and shelf-life verification
Physical performance checks
- Particle size distribution or sieve analysis
- Bulk density and tapped density
- Flowability, dusting and caking tendency
- Dry blend dispersion and premix homogeneity
- Reaction performance in the buyer’s formula
- Finished product pH and sensory review
- Packaging seal integrity and pallet condition
- Storage stability under local warehouse conditions
Regulatory and compliance notes
Sodium Bicarbonate is commonly referenced within the E500 carbonate family, with Sodium Bicarbonate identified as E500(ii). Regulatory status, food categories, purity criteria, maximum use levels, additive naming and label declaration can differ by market. Buyers should confirm the final application against the rules of the destination country and customer specification before commercial approval.
For export-oriented food manufacturers, documentation should be checked before shipment, not after the goods arrive. Importers may require product specification, COA, SDS, health certificate, halal certificate, kosher certificate, origin statement, non-GMO statement, allergen declaration, heavy metal declaration, packaging list, invoice and certificate of analysis matching the shipped lot.
Recommended documents to request
- Product specification or technical data sheet with assay, impurity and physical parameters
- Certificate of analysis for available batch or lot
- Safety data sheet where applicable
- Food-grade declaration and statement of intended food use
- Origin statement and manufacturer information where available
- Allergen, GMO, vegan, halal, kosher or animal-origin declarations when required
- Heavy metals statement and market-specific contaminant compliance where applicable
- Shelf-life, storage condition and handling recommendation
- Label draft, net weight, bag dimensions, pallet configuration and container loading estimate
- Traceability information, batch coding format and recall-support documentation
Specification information useful for quotation
For a faster and more accurate quotation, provide the target specification, required grade, annual and first-order quantity, destination country, delivery term, preferred packaging, required certifications, inspection requirements and expected shipment date. If you already purchase Sodium Bicarbonate, share the existing COA, product label, technical data sheet or benchmark supplier specification so equivalent options can be compared by assay, particle size, density, origin, documentation and logistics cost.
Packaging and logistics
Industrial Sodium Bicarbonate is usually quoted according to packaging type, palletization, container loading, port of loading, Incoterms and destination. Moisture protection is important because bicarbonate powders can cake or lose flowability if exposed to humidity. Export shipments should be reviewed for bag strength, pallet wrapping, container humidity control, documentation deadlines and destination customs requirements.
Commercial evaluation criteria
- Food-grade status and documentation completeness
- Consistency of assay, particle size and moisture
- Suitability for the buyer’s leavening system and production line
- Lead time, stock position and minimum order quantity
- Packaging suitability for manual, semi-automatic or automated handling
- Regulatory fit for the destination market
- Total landed cost, not only unit price
How to request this product
Send the product name, grade, reference specification, target function, quantity, destination country, packaging preference, expected shipment date and required documents. If the ingredient will be used in cakes, biscuits, crackers, premixes, tortillas, batters, confectionery or pH-sensitive formulations, include the application category so the supplier review can focus on the most relevant technical parameters.
Useful answers
What is Sodium Bicarbonate used for in food manufacturing?
Sodium Bicarbonate is used as a raising agent, leavening base, acidity regulator and pH control ingredient. In bakery and batter systems, it reacts with acidic ingredients to release carbon dioxide, supporting lift, aeration, volume and crumb structure.
Is Sodium Bicarbonate the same as Sodium Carbonate?
No. Sodium Bicarbonate is NaHCO3 and Sodium Carbonate is Na2CO3. Sodium Bicarbonate is less alkaline and is commonly used as baking soda in controlled leavening systems, while Sodium Carbonate has stronger alkalinity and different formulation behavior.
Which grade should food manufacturers request?
Food manufacturers should request food-grade Sodium Bicarbonate with a clear specification, certificate of analysis, food-use declaration, impurity limits, shelf-life information, packaging details and destination-market compliance documents.
Why does particle size matter?
Particle size affects dry blending, dusting, dispersion, reaction speed and homogeneity. Fine grades may disperse quickly, while coarser grades may behave differently in dry premixes or controlled-release applications. The correct choice depends on process, formula and equipment.
Can Global Food Additives source Sodium Bicarbonate?
Global Food Additives can review sourcing options for Sodium Bicarbonate according to target specification, quantity, destination, packaging, certification needs and required documentation.
Which documents should be requested?
Buyers commonly request a technical data sheet, certificate of analysis, safety data sheet, food-grade declaration, origin statement, allergen statement, GMO status, heavy metal limits, shelf-life and storage information, label details and packing configuration.
Is this product permitted in every country?
No. Food additive use depends on destination-market rules, food category, use level, label requirements and buyer responsibility. Always verify local regulations before commercial use.
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