Calcium D-Arabinonate is primarily used in the food and beverage industry as a stabilizer and emulsifier. It helps maintain the consistency and texture of various products, such as dairy items and baked goods. In pharmaceuticals, it serves as an excipient in tablet formulations, ensuring proper binding and disintegration. Additionally, it is utilized in cosmetic products for its moisturizing properties, enhancing skin hydration and smoothness. Its role in industrial applications includes acting as a chelating agent in water treatment processes, effectively binding and removing metal ions from solutions.