Overview
Calcium ascorbate is a synergistic compound combining calcium and ascorbic acid (vitamin C). It is widely recognized for its dual nutritional benefits and antioxidant properties. Unlike ascorbic acid, it is non-acidic, making it gentler on the stomach and suitable for sensitive applications. In industrial contexts, calcium ascorbate is valued for its stability and versatility. It is commonly used in food preservation, dietary supplements, and pharmaceutical formulations. Its ability to enhance shelf life and nutritional content makes it a preferred choice for manufacturers.
Physical and Chemical Properties
Calcium ascorbate appears as a white to off-white crystalline powder with a mild, slightly acidic taste. It is highly soluble in water, which facilitates its use in liquid formulations. The compound decomposes at around 200°C, releasing carbon dioxide and other byproducts. Chemically, it acts as a reducing agent and antioxidant, protecting products from oxidation. Its non-acidic nature (pH-neutral) distinguishes it from ascorbic acid, making it suitable for applications where acidity must be minimized. These properties contribute to its widespread use in food and pharmaceutical industries.
Main Applications
Calcium ascorbate is primarily used as a food additive (E302) to prevent oxidation and extend shelf life in products like baked goods, meats, and beverages. It also serves as a dietary supplement, providing both calcium and vitamin C in a bioavailable form. In pharmaceuticals, it is incorporated into tablets and capsules for its nutritional benefits. The cosmetic industry utilizes it in skincare products for its antioxidant properties. Its non-irritating nature makes it ideal for sensitive applications, such as infant formulas and medical nutrition.
Safety and Storage
Calcium ascorbate is generally recognized as safe (GRAS) by regulatory bodies like the FDA and EFSA. However, excessive consumption may lead to gastrointestinal discomfort or kidney stones due to calcium overload. Proper storage is essential to maintain its efficacy. It should be kept in a cool, dry place, sealed tightly to avoid moisture absorption. Exposure to light or high temperatures can degrade the compound, reducing its antioxidant capacity. Industrial users should follow Good Manufacturing Practices (GMP) for handling and storage.
B2B Procurement Guide
When procuring calcium ascorbate, prioritize suppliers with certifications like USP, FCC, or BP, ensuring high purity (98-100%). Food or pharmaceutical-grade material is essential for sensitive applications. Packaging should be moisture-proof, often in multi-layered bags or drums. Bulk buyers should negotiate prices based on volume, with typical ranges of $10-$30 per kg. Consider logistical factors, such as shelf life and storage conditions, to avoid spoilage. Reliable suppliers provide technical support and documentation, including Certificates of Analysis (CoA) and Material Safety Data Sheets (MSDS).
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