Physical and Chemical Data
Calcium Propionate (C6H10CaO4, MW: 186.22) is the calcium salt of propionic acid, presenting as a white crystalline powder or granules. It carries a slight propionic acid odor and dissolves in water, achieving a solubility limit of approximately 49 g/100 mL at 25°C.
The thermal profile of Calcium Propionate is characterized by high heat tolerance; it decomposes upon heating to temperatures exceeding 300°C, providing exceptional resistance to sublimation and molecular cracking during intensive thermal bakery baking cycles. In aqueous solutions, it maintains a stable, near-neutral pH range of 6.0 to 9.0.
Technical Comparison: Calcium Propionate vs. Sodium Propionate
When choosing between Calcium Propionate and Sodium Propionate, formulation chemistry and sensory requirements dictate the optimal choice:
pH Substrate Interference: Calcium Propionate introduces calcium ions into the matrix, which helps cross-link proteins in wheat dough, strengthening structural crumb integrity. However, in chemically leavened baked goods (like cakes or donuts using sodium bicarbonate), calcium ions react with leavening pyrophosphates, creating insoluble precipitates and hindering the rise. In such applications, Sodium Propionate must be used instead.
Sodium Restrictions: For manufacturers aiming for "low-sodium" or "health-oriented" labels on finished goods, Calcium Propionate is the preferred stabilizer as it contributes zero sodium to the nutritional calculation.
Solubility Dynamics: Sodium Propionate dissolves much faster and exhibits double the water solubility (100 g/100 mL) compared to Calcium Propionate (49 g/100 mL), making the sodium salt more suitable for ultra-concentrated liquid blends.
Product Grades and Specifications
Snowhite Chemical Co., Ltd. manufactures and stocks Calcium Propionate in three distinct commercial grades to comply with international regulatory frameworks:
• Food Grade: Formulated strictly for direct food processing, guaranteeing a minimum active purity assay of 99.0% on an anhydrous basis. Heavy metal content is heavily suppressed (Lead ≤ 5 mg/kg, Fluoride ≤ 30 mg/kg), with moisture limited to ≤ 5.0% to prevent chemical deterioration.
• Feed Grade: Tailored for livestock nutrition and silage preservation. This grade focuses on a dust-free particle distribution that integrates evenly into bulk animal feed rations, mineral pre-mixes, and grain silos.
• Technical / Industrial Grade: Engineered for technical compounding, leather pickling, and polymer manufacturing, balancing high active ingredient ratios with competitive B2B sourcing economies.
Application Sectors
1. Yeast-Leavened Bakery Processing
Calcium Propionate is the globally recognized standard preservative for yeast-leavened bakery products, such as sliced sandwich breads, buns, and rolls. At a production dosage of 0.1% to 0.3% based on flour weight, the compound frees its active un-ionized propionic acid when dough pH is under 5.5. It directly halts the enzymatic processes of molds and Bacillus mesentericus (rope bacteria). Because bakery yeast cells are biologically adapted to resist propionate ions, the fermentation cycle proceeds completely uninhibited.
2. Agronomy and Livestock Feed Preservation
Feed-grade Calcium Propionate functions as an aggressive mold inhibitor and volatile fatty acid stabilizer in poultry, swine, and dairy cattle feeds. It stops self-heating caused by microbial activity in bulk grain silos, preserves core carbohydrate profiles, and completely eliminates the development of toxic mycotoxins during prolonged agricultural storage.
3. Specialty Technical Compounding
Leather Tanning: Applied during the pickling and chrome-tanning phases to prevent mold propagation on wet-blue hides during global transshipment.
Aqueous Polymers: Serves as a technical stabilizer in industrial water-borne adhesives and specialty coatings to protect formulations against bacterial breakdown during warehousing.
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
