Calcium ascorbate dihydrate (CAS 5743-28-2) is a well - known and high - quality product. It is a calcium salt of ascorbic acid (vitamin C), which occurs as a white to slightly yellowish, odorless powder. The dihydrate form indicates that each molecule of calcium ascorbate is associated with two molecules of water.
Its chemical formula is C12H14CaO12·2H2O, and it has a molecular weight of approximately 426.35 g/mol. This product is highly soluble in water, making it easy to incorporate into various formulations. It is also stable under normal storage conditions, but should be kept in a cool, dry place away from light to maintain its quality.
1. Dietary Supplements: Calcium ascorbate dihydrate is widely used in the dietary supplement industry. It serves as a source of both calcium and vitamin C. Calcium is essential for maintaining strong bones and teeth, while vitamin C is a powerful antioxidant that helps boost the immune system, aids in collagen synthesis, and enhances iron absorption.
2. Food and Beverage Industry: It can be added to food and beverages as a nutrient fortifier and antioxidant. For example, it can be used in fruit juices, dairy products, and baked goods to increase their nutritional value and extend their shelf - life by preventing oxidation of ingredients.
3. Cosmetics: In the cosmetics industry, it is used in skin - care products. Vitamin C in calcium ascorbate dihydrate helps to brighten the skin, reduce the appearance of dark spots, and promote a more youthful complexion. It also has antioxidant properties that protect the skin from free - radical damage.
1. Dietary Supplements: When used as a dietary supplement, the recommended dosage can vary depending on age, gender, and individual health needs. Generally, adults can take 500 - 1000 mg per day. It can be taken with or without food. For best results, it is advisable to follow the instructions on the product label or consult a healthcare professional.
2. Food and Beverage: In the food and beverage industry, the amount of calcium ascorbate dihydrate added depends on the specific product and its intended nutritional value. It is typically added during the manufacturing process, and the addition rate can range from 0.05% to 0.5% by weight.
3. Cosmetics: In skin - care products, it is usually incorporated into creams, lotions, or serums at a concentration of 2% - 10%. It should be mixed well with other ingredients to ensure uniform distribution.
1. Dietary Supplements Case: A middle - aged woman named Lisa was experiencing mild joint pain and had a history of low vitamin C levels. She started taking a dietary supplement containing calcium ascorbate dihydrate at a dosage of 500 mg per day. After three months, she noticed a significant reduction in joint pain. Her blood tests also showed an improvement in her vitamin C levels, and her overall energy levels increased.
2. Food Industry Case: A juice company was facing issues with the oxidation of their orange juice, which led to a change in color and flavor. They decided to add calcium ascorbate dihydrate at a rate of 0.1% by weight during the manufacturing process. The addition not only extended the shelf - life of the juice but also maintained its fresh flavor and natural color for a longer period.
3. Cosmetics Case: A cosmetic company developed a new anti - aging serum with calcium ascorbate dihydrate at a concentration of 5%. After a three - month trial period with 100 participants, 80% of them reported a visible reduction in the appearance of fine lines and wrinkles. Their skin also appeared more radiant and hydrated.
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