Calcium Ferrocyanide E538
Calcium Ferrocyanide is a specialised food additive identity reviewed by industrial buyers for anticaking performance, salt crystal flow, dry-blend stability and mineral-carrier handling where destination-market regulations permit. For food manufacturers, the commercial value is not only the additive name, but the ability to match a compliant grade with the correct specification, batch documentation, packaging format and import requirements.
Global Food Additives supports procurement teams, R&D departments and quality managers by coordinating supplier options, technical documents and quotation details for Calcium Ferrocyanide and related anticaking systems used in salt, seasoning and dry ingredient production.
Product identity
| Product | Calcium Ferrocyanide |
|---|---|
| Common additive reference | E538 / INS 538 |
| CAS / identity | 13821-08-4 |
| Product family | Ferrocyanide anticaking agents |
| Category | Anticaking, Flow & Mineral Carriers |
| Primary function | Anticaking agent / flow aid for permitted dry food systems |
| Typical form | Fine powder, crystalline powder or customer-specified grade |
| Commercial focus | Food-grade documentation, controlled impurities, batch traceability and export-ready packing |
Application fit
Potential use areas should always be checked against local additive rules, permitted food categories and customer specifications. Typical review areas may include:
- Food salt and industrial salt grades intended for food use
- Salt substitutes and reduced-sodium seasoning systems where permitted
- Dry seasoning blends containing salt or mineral carriers
- Premixes where powder flow, hopper discharge and bag emptying are critical
- Export-oriented private-label salt products requiring controlled anticaking performance
- Mineral or crystalline dry blends that require regulatory review before use
Technical function in dry food systems
Calcium Ferrocyanide is evaluated for its ability to improve the handling behaviour of moisture-sensitive crystalline powders. In salt and similar dry systems, caking can occur when humidity, pressure, storage time and temperature cycling create liquid bridges between particles. Once these bridges dry or recrystallise, the material may form lumps, hard blocks, poor-flowing zones or hopper bridging. A correctly specified anticaking system can help maintain free-flowing behaviour through bagging, storage, dosing, conveying and consumer use.
Industrial purchasing teams should evaluate Calcium Ferrocyanide as part of a complete powder-flow strategy. The final result depends on salt crystal size, surface moisture, relative humidity, dosage method, mixer efficiency, packaging barrier properties, warehouse conditions and the time between production and use.
Performance benefits to evaluate
- Reduced lump formation in hygroscopic crystalline ingredients
- Improved discharge from bags, silos, bins, feeders and hoppers
- More consistent dosing in dry blending and seasoning production
- Lower risk of line stoppage caused by bridging or compacted salt
- Better flow retention during pallet storage and long-distance export
- Support for uniform distribution of salt in dry formulations
Process variables to confirm
| Moisture exposure | Review humidity during production, bagging, warehouse storage and container loading. |
|---|---|
| Crystal size | Fine salt usually cakes more easily than coarse salt because of greater surface area. |
| Mixing method | Confirm whether the additive is dosed directly, pre-diluted or applied through a carrier system. |
| Contact time | Validate flow performance after realistic storage periods, not only immediately after blending. |
| Packaging | Use moisture-resistant bags or liners when the destination climate or sea freight route requires it. |
Specification checklist for buyers
For industrial purchasing, the most valuable comparison is not a generic product name. Buyers should request a current supplier specification and compare it against the intended application, regulatory market and internal quality standard. Useful specification parameters may include:
Chemical and physical controls
- Assay or active content basis used by the supplier
- Identity confirmation and additive number reference
- Appearance, colour and odour description
- Moisture or loss on drying
- Water-insoluble matter or insoluble residue where applicable
- Particle size distribution or mesh range
- Bulk density or tapped density if required for dosing equipment
- pH or solution behaviour if included in the supplier method
Purity and safety checks
- Heavy metals limits according to the target specification
- Lead, arsenic, mercury or cadmium limits where required
- Free cyanide or cyanide-related limits when specified by regulation or customer standard
- Residual solvents or process impurities if relevant to origin and manufacturing route
- Food-grade statement and suitability declaration
- Batch traceability, lot number and production date
- Shelf-life, storage and retest recommendation
- SDS classification and safe handling instructions
Industrial purchasing notes
When sourcing Calcium Ferrocyanide, procurement teams should define the commercial and technical target before requesting offers. A clear inquiry improves supplier matching, reduces document delays and helps avoid comparing non-equivalent grades. The most useful inquiry normally includes the required additive identity, target specification, annual and first-order volume, destination country, delivery term, packaging preference, required certifications and any buyer-specific restricted-substance limits.
For manufacturers using automated dosing, the physical grade is especially important. Particle size, flowability, dusting tendency and bulk density can affect loss-in-weight feeders, ribbon blenders, screw conveyors, bag emptying stations and operator exposure controls. When the product is intended for export salt or seasoning production, the documentation package should also be reviewed against the receiving country's import and label expectations before shipment.
Application guidance by industry segment
Salt and salt substitutes
Salt manufacturers typically focus on anticaking efficiency, uniform distribution, crystal compatibility, humidity resistance and label compliance. Buyers should confirm whether the additive is permitted in the final salt category and whether the declared additive name or number matches the destination-market rule.
Seasonings and dry blends
Seasoning producers should check whether Calcium Ferrocyanide is allowed in the final food category or only in the salt component. For export blends, verify carry-over rules, label wording, maximum levels and whether the customer requires a different anticaking system.
Food ingredient distribution
Distributors should request stable supply, consistent packaging, full traceability, multilingual documents if needed and clear shelf-life information. Import documents should match invoice, packing list and label information.
Private-label and export projects
Private-label salt projects may require technical files, label review, regulatory declarations, country-specific additive checks and packaging adapted to humid climates or long container transit times.
Quality documentation to request
Documentation quality is often the deciding factor for food additive purchasing. Before confirming an order, request current and batch-specific documents where possible:
- Product specification or technical data sheet showing identity, grade and key limits
- Certificate of analysis for the offered batch or a representative recent lot
- Safety data sheet with handling, storage, PPE and transport information
- Food-grade declaration and intended-use statement
- Country of origin and manufacturer or producer declaration where available
- Shelf-life, retest period and storage-condition statement
- Allergen, GMO, irradiation, vegan/vegetarian, halal or kosher declarations when required
- Heavy metals or contaminant declaration according to buyer specification
- Packaging specification, net weight, gross weight and pallet configuration
- Regulatory statement for the destination market, if available from the supplier
Packaging, storage and logistics
Calcium Ferrocyanide should be handled as a controlled food additive with clean, sealed packaging and traceable lot identification. Packaging options depend on supplier capability and order quantity, but buyers commonly request small bags for controlled dosing, palletised multiwall bags for industrial use or moisture-protected packaging for humid destinations.
Packaging details to confirm
| Bag size | Confirm available net weights such as 20 kg, 25 kg or customer-specific packing. |
|---|---|
| Bag type | Request food-compatible inner liner, sealed multiwall bag or drum if required. |
| Palletisation | Ask for bags per pallet, pallet dimensions, stretch wrapping and export pallet treatment. |
| Labelling | Confirm product name, lot number, net weight, origin, shelf-life and handling marks. |
| Container loading | Check maximum payload, moisture protection and desiccant requirement for sea freight. |
Storage recommendations
- Keep bags tightly closed when not in use
- Store in a dry, cool and well-ventilated warehouse
- Protect from water, condensation and direct sunlight
- Keep away from acids and incompatible materials according to SDS guidance
- Use first-expiry, first-out stock rotation
- Maintain lot traceability from receipt to production batch
Regulatory and label review
Calcium Ferrocyanide is identified as E538 / INS 538, but additive numbering alone does not guarantee permission in every food or every country. A buyer should verify the exact legal status in the destination market, including permitted food categories, maximum use levels, carry-over rules, label declaration and any customer-specific blacklist or retailer standard. In some markets, related ferrocyanide additives are treated differently by salt type, food category or additive identity, so the actual product name and active basis must be checked carefully.
For cross-border trade, ask the supplier whether they can provide a regulatory statement for the destination country. If a supplier cannot provide market-specific confirmation, the buyer should obtain confirmation from a qualified regulatory consultant or the local authority before using the product in food production.
Comparison with related anticaking systems
Calcium Ferrocyanide may be compared with other anticaking agents depending on the target food, label strategy and technical objective. Alternatives can include sodium ferrocyanide, potassium ferrocyanide, silicon dioxide, calcium silicate, tricalcium phosphate, magnesium carbonate or other approved flow aids. The best option depends on local regulations, dosage limits, salt particle size, sensory impact, label preference, solubility, cost and supplier documentation.
When Calcium Ferrocyanide may be considered
- When a salt or mineral system requires strong anticaking performance
- When the buyer needs an E538 / INS 538 referenced additive option
- When existing formulations already use ferrocyanide-type anticaking agents
- When export documentation and batch traceability can be supplied
When another additive may be better
- When E538 is not permitted in the destination food category
- When the customer prefers mineral-based anticaking agents such as silicates or phosphates
- When label positioning avoids ferrocyanide-type additive names
- When the process requires a different particle size, carrier behaviour or solubility profile
How to request this product
Send the product name, target grade or reference specification, quantity, destination country, delivery term, packaging preference, expected shipment date and required documents. If you already purchase Calcium Ferrocyanide, attach or describe your existing specification, label, certificate of analysis or approved supplier requirement so alternatives can be compared more accurately.
Useful answers
What is Calcium Ferrocyanide used for in food manufacturing?
Calcium Ferrocyanide E538 is reviewed as an anticaking and flow-control additive, especially for salt, salt substitutes and dry mineral or seasoning systems where regulations allow. It can help reduce caking, bridging, clumping and poor discharge in hygroscopic crystalline materials.
Is Calcium Ferrocyanide the same as cyanide?
No. Calcium Ferrocyanide is a ferrocyanide complex, not a simple cyanide salt. However, it must still be handled according to the supplier SDS, stored away from incompatible materials and used only within permitted food applications and specifications.
Is this product permitted in every country?
No. Food additive use depends on destination-market rules, food category, maximum level, additive identity, label requirements and customer responsibility. Buyers should verify the final regulatory status before use.
Which documents should be requested?
Buyers commonly request a product specification, technical data sheet, certificate of analysis, safety data sheet, origin statement, shelf-life information, storage conditions, packaging details, label information and destination-market declarations when required.
What should be checked on the certificate of analysis?
Check lot number, production date, test date, assay or active content, appearance, moisture, insoluble matter, relevant impurity limits, heavy metals where specified and whether the certificate matches the supplied batch and purchase specification.
Can Global Food Additives source Calcium Ferrocyanide?
Global Food Additives can review sourcing options according to target grade, quantity, destination, packaging, documentation, shipment schedule and regulatory expectations. Availability depends on supplier stock, origin, certification and buyer requirements.
Tell us which food additive or ingredient you need.
Send product names, target specifications, quantity, destination country, packaging preference, delivery term, and document requirements. Our team will review your inquiry and respond from orders@foodgradeadditives.com.
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