Physical and Chemical Data
Sodium Propionate (C3H5NaO2, MW: 96.08) is the sodium salt of propionic acid, available in white crystalline powder or granular forms. The product dissolves rapidly in water, with a solubility reaching 100 g/100 mL at 25°C. It exhibits limited solubility in alcohol-based solvents.
A critical operational parameter of Sodium Propionate is its thermal stability. It does not possess a classic distinct sharp melting point but undergoes thermal decomposition upon heating to approximately 287°C to 289°C, resisting volatilization and sublimation during high-temperature manufacturing cycles. In aqueous formulations, it maintains a stable pH range between 7.5 and 10.5, providing mild buffering capabilities in moisture-sensitive chemical matrices.
Product Grades and Specifications
Snowhite Chemical Co., Ltd. manufactures and stocks Sodium Propionate in specific commercial grades to comply with international regulatory frameworks:
• Food Grade: Synthesized strictly for direct human consumption, ensuring a minimum active purity assay of 99.0% on an anhydrous basis. Heavy metal thresholds are strictly maintained (Lead ≤ 2 mg/kg, Mercury ≤ 1 mg/kg), with moisture capped at 1.0% to prevent caking and sensory interference in finished food matrices.
• Feed Grade: Optimized for animal nutrition and agronomy. This grade features a calibrated particle size distribution to ensure homogenous blending during mechanical dry mixing and is formulated to resist moisture-induced caking in bulk mineral premixes and agricultural storage.
• Technical / Industrial Grade: Engineered for non-dietary chemical processing, focusing on high bulk density and reliable active matter concentration for large-scale compounding, leather pickling, and industrial preservation.
Application Sectors
1. Industrial Bakery Processing
In commercial baking, Sodium Propionate is utilized as a targeted shelf-life extender for yeast-leavened products like breads, buns, tortillas, and pizza doughs. At typical production dosages of 0.1% to 0.5% based on flour weight, it becomes highly effective when dough pH drops below 5.5. The un-ionized propionic acid disrupts the metabolic pathways of destructive molds and Bacillus mesentericus (the bacteria responsible for structural "rope" spoilage). Crucially, baking yeasts possess a high natural tolerance to propionate ions, allowing normal fermentation to proceed without structural inhibition.
2. Animal Nutrition and Silage Preservation
Feed-grade Sodium Propionate prevents mold proliferation and stabilizes volatile fatty acids in poultry, swine, and cattle feed formulations. By suppressing microbial metabolism during extended warehousing, it controls self-heating in bulk grain silos, preserves core protein and carbohydrate integrity, and inhibits the formation of mycotoxins in agricultural raw materials.
3. Specialty Technical Compounding
Water-Borne Coatings & Adhesives: Functions as an in-can preservative, preventing bacterial degradation and viscosity loss in aqueous polymers during storage.
Leather Tanning: Used in the pickling and chrome-tanning phases to provide mold resistance to raw hides before final processing.
Metalworking & Drilling Fluids: Acts as a specialized biocide additive in high-temperature cutting fluids and drilling muds where standard organic preservatives break down under mechanical heat.
Supply and B2B Logistical Advantages
Snowhite Chemical Co., Ltd. is a professional chemical manufacturer and exporter supplying premium-grade chemical raw materials to clients worldwide. We manage dedicated production infrastructure to ensure batch-to-batch consistency and secure supply continuity.
• Direct Factory Pricing: We eliminate trading intermediaries to optimize procurement costs for international volume buyers.
• Analytical Documentation: Every shipment is accompanied by a verified Certificate of Analysis (COA) confirming adherence to food, feed, or technical specifications.
• Packaging Solutions: Available in standard 25kg multi-wall moisture-barrier paper bags, valve bags, and UV-stabilized industrial bulk tons bags.
Contact our sales team to request material safety data sheets (MSDS), product samples, or contract quotations.
Contact Us
Contact SNOWHITE CHEMICAL CO.,LTD now to get COA, free samples and the latest quotation.
Email: shirley@snowhitechem.com
Phone: +86-25-56215758
WhatsApp：+86-13776524331
