Feed Grade Sodium Benzoate

Our feed grade sodium benzoate is specifically optimized for animal nutrition and feed storage applications. With a 98.5% minimum assay, it is widely used by compound feed manufacturers to improve the storage stability of moisture-sensitive feed materials, effectively preventing mold growth during storage of corn, soybean meal, and complete feed mixtures under humid conditions. Unlike food-grade specifications, this variant features contaminant-control limits tailored for livestock safety, delivering robust antimicrobial performance without the documentation costs of human food-additive compliance.

As the sodium salt of benzoic acid (CAS 532-32-1), it dissolves in the moisture film surrounding feed particles, releasing active undissociated benzoic acid within the acidic micro-environments typical of fermented silage and grain-based rations. We supply this mold inhibitor in powder and granular forms with batch-specific COA and MSDS for feed mills and silage distributors globally.

Note: This specification is designed strictly for animal nutrition and does not meet food-additive purity standards for direct human consumption. For beverage or sauce preservation, please see our sodium benzoate food grade.

Key Applications in Animal Nutrition

Stored Grain & Oilseed Meals: Suppresses mold sporulation in bulk silos where ambient humidity exceeds 65%, extending safe storage duration for corn and soybean meal in tropical climates.
Compound Feed & TMR: Dampens yeast and mold proliferation in rations containing high-moisture ingredients (e.g., distillers grains, wet brewers grains), reducing mycotoxin risks during on-farm storage.
Silage & Haylage Preservation: Acts as a supplementary mold control agent alongside propionic or formic acid, maintaining aerobic stability during bunker filling and feed-out phases.
Vitamin & Mineral Premixes: Its neutral pH avoids acid-catalyzed vitamin oxidation, ensuring the premix retains label potency through distribution without degrading fat-soluble vitamins.

Why Feed Mills Choose Our Supply

Dedicated Production: Manufactured on a separate line to guarantee zero cross-contamination with food-grade batches.
Targeted QC: Rigorous batch testing focused on assay consistency, moisture control, and heavy metal limits (Pb ≤ 20 mg/kg) aligned with livestock safety standards.
Logistics Expertise: Extensive experience exporting bulk feed additives to high-humidity regions, with packaging optimized to withstand ocean freight conditions.

Technical Specifications

Property	Feed Grade Standard	Food Grade Standard (Reference)
CAS Number	532-32-1
EINECS Number	208-534-8
E Number / INS	E211
Chemical Formula	C₇H₅NaO₂
Molecular Weight	144.11 g/mol
Appearance	White Powder / Granular	White Powder / Granular / Columnar
Assay (Dry Basis)	≥ 98.5%	99.0% – 100.5%
Loss on Drying	≤ 2.0%	≤ 1.5%
pH (10% Solution)	7.0 – 8.5	7.0 – 8.5
Chloride (Cl)	≤ 0.05%	≤ 0.02%
Heavy Metals (as Pb)	≤ 20 mg/kg	≤ 2.0 mg/kg
Arsenic (As)	Not specified / Pass	≤ 2.0 mg/kg
Solubility in Water	556 g/L at 20°C
Regulatory References	Aligned with applicable feed additive safety requirements in target markets	GB 1886.184-2016, FCC, EU 231/2012

Operational Advantages by Form

Powder Form: Fine particle size ensures rapid dissolution in silage juice and liquid feed supplements. Loads ~16.5 MT per 20ft FCL.
Granular Form: Dust-free and free-flowing. Resists segregation during pneumatic conveying in premix plants and prevents clogging of automated filters. Loads up to 20 MT per 20ft FCL.
Field Tip (Best Practice): In warehouses with ambient humidity above 70%, granular form resists caking significantly better than powder. Furthermore, pre-mixing the granular product with a small portion of carrier (e.g., rice hulls) before full batch blending prevents localized “hotspots” and ensures uniform mold protection throughout the silo.

Storage & Handling

Store in original sealed PE-lined PP woven bags in a cool, dry, well-ventilated area. Shelf life is two years under recommended conditions. Handle with standard protective equipment (dust mask and gloves).

feed grade sodium benzoate application in compound feed mill warehouse

For complementary mold inhibition strategies, explore our calcium propionate feed grade. For a complete overview of our solutions, visit our feed additives category or food grade sodium benzoate page.

Frequently Asked Questions

What is the typical addition rate of feed grade sodium benzoate in compound feed?

The typical inclusion rate ranges from 0.5 to 1.5 kg per metric ton (0.05% – 0.15%) of compound feed. However, the exact dosage should be adjusted based on the initial moisture content of the ingredients, ambient storage temperature, and the expected duration of storage.

Can feed grade sodium benzoate be used together with propionic acid in silage?

Yes, they are highly complementary. Propionic acid provides rapid, strong acidification to lower pH quickly during ensiling, while sodium benzoate provides long-term mold and yeast inhibition during the feed-out phase without further dropping the pH, thereby preserving feed palatability.

How does the granular form of sodium benzoate improve feed mill operations?

Granular sodium benzoate significantly reduces dust generation during pneumatic conveying and automated batching. It also offers superior resistance to caking in high-humidity environments (>70% RH) compared to fine powder, ensuring consistent flowability and accurate dosing in premix systems.

Ready to source feed grade sodium benzoate for mold control in your stored grain, compound feed, or silage operations? Contact us on WhatsApp for the latest price per metric ton, free samples up to 500 g, and batch-specific COA tailored to your feed safety audit requirements.

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