Calcium Citrate: A Vital Calcium Supplement with Broad Applications

Calcium citrate (CAS 813-94-5) is a highly valued compound, widely recognized for its role as a calcium supplement and its diverse applications across various industries. This article explores its chemical properties, production methods, and key uses, highlighting its importance in both health and industrial contexts.

Sifat Kimia

Calcium citrate is the calcium salt of citric acid, typically appearing as a white powder or white to colorless crystals. It is slightly soluble in water and odorless. Its chemical formula is C₁₂H₁₀Ca₃O₁₄, with a molecular weight of approximately 498.43 g/mol.

Production Methods

Calcium citrate is produced industrially by neutralizing citric acid with calcium hydroxide. This process precipitates insoluble calcium citrate, which is then filtered, washed, and dried to obtain the final product.

Applications

Calcium citrate is primarily used as a dietary supplement due to its high bioavailability and ease of absorption. It is also widely used in the food industry as a preservative, buffering agent, and firming agent. Additionally, it serves as a water softener and stabilizer in various industrial processes.

Health Benefits

Calcium citrate is known for its superior bioavailability compared to calcium carbonate, making it easier to digest and less likely to cause constipation. It is also considered a safer option for individuals with low stomach acid and those who have undergone gastric bypass surgery. Calcium citrate is commonly used to treat conditions related to low calcium levels, such as osteoporosis and rickets.

Safety and Environmental Impact

Calcium citrate is generally recognized as safe (GRAS) by regulatory authorities. It is non-toxic and stable under normal conditions, making it suitable for widespread use in both food and pharmaceutical applications.

In conclusion, calcium citrate (CAS 813-94-5) is a versatile and essential compound with significant health benefits and a wide range of industrial applications. Its high bioavailability and safety profile make it a preferred choice for calcium supplementation and various other uses.