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Calcium Ascorbate Dihydrate is a buffered form of vitamin C produced by combining ascorbic acid with calcium. Compared with pure ascorbic acid, it has lower acidity and improved stability, making it suitable for food fortification, dietary supplements, and pharmaceutical formulations.
It functions both as a source of vitamin C and as an antioxidant, helping maintain nutritional value and product stability in various applications such as functional foods, beverages, and health supplements.Our Calcium Ascorbate Dihydrate is manufactured under strict quality control to ensure high purity, consistent quality, and reliable supply for international markets.
| Item | Details |
| Product Name | Calcium Ascorbate Dihydrate |
| CAS Number | 5743-28-2 |
| Molecular Formula | C12H14CaO12·2H2O |
| Molecular Weight | 426.35 |
| Appearance | White to slightly yellow crystalline powder |
| Grade | Food Grade / Pharmaceutical Grade |
| Solubility | Soluble in water |
| Parameter | Specification |
| Assay (Vitamin C) | ≥ 98% |
| Calcium Content | 9% – 10% |
| Loss on Drying | ≤ 11% |
| Residue on Ignition | ≤ 0.1% |
| Heavy Metals | ≤ 10 ppm |
| pH (10% solution) | 6.8 – 7.4 |
(Custom specifications are available according to customer requirements.)
Buffered vitamin C with reduced acidity
Provides both vitamin C and calcium nutrients
Excellent antioxidant performance
Good stability in food and supplement formulations
Reliable bulk supply for international customers
Calcium Ascorbate Dihydrate is widely used in several industries due to its nutritional and antioxidant properties.
In the food industry, it is commonly used as a vitamin C fortifier and antioxidant in processed foods, beverages, and nutritional products.
In the dietary supplement industry, it serves as an important ingredient in vitamin C tablets, capsules, and powdered nutritional supplements.
In the pharmaceutical sector, it can be used in vitamin formulations and mineral-vitamin combination products where both calcium and vitamin C are required.
Additionally, it is used in functional beverages and health products to enhance nutritional value and maintain product stability.
Calcium Ascorbate Dihydrate should be stored in a cool, dry, and well-ventilated environment. The container should remain tightly sealed to prevent moisture absorption.
Avoid exposure to direct sunlight, excessive heat, and humid conditions, as these factors may affect product stability.
Under proper storage conditions, the product typically has a shelf life of 24 months.
Standard packaging options include 1 kg aluminum foil bags and 25 kg fiber drums, which are suitable for both laboratory use and industrial transportation.
Customized packaging solutions can also be arranged based on customer requirements and shipping conditions.
Our Calcium Ascorbate Dihydrate is produced and tested under strict quality management procedures. Each production batch undergoes inspection to ensure it meets the required quality standards before shipment.
The following documentation can be provided:
Certificate of Analysis (COA)
Material Safety Data Sheet (MSDS)
Technical Data Sheet (TDS)
Commercial invoice and packing list
What is Calcium Ascorbate Dihydrate mainly used for?
It is primarily used as a vitamin C source and antioxidant in food products, dietary supplements, and pharmaceutical formulations.
What are the advantages compared with ascorbic acid?
Calcium ascorbate is less acidic and gentler on the stomach while still providing vitamin C activity, and it also supplies calcium as an additional nutrient.
Is your product suitable for dietary supplements?
Yes, Calcium Ascorbate Dihydrate is widely used in vitamin C tablets, capsules, and nutritional powder blends.
Do you provide samples for testing?
Yes, small samples are available for laboratory evaluation before bulk orders.
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