Calcium Citrate Anhydrous Powder Description

Calcium Citrate Anhydrous Powder (Ca₃(C₆H₅O₇)₂, 498.44 g/mol molecular weight) is a white, odorless, crystalline powder with a complete absence of water of crystallization. It's anhydrous form ensures high chemical purity and higher stability than hydrated forms. The product is very soluble in water, yielding pale turbidity solutions due to the trace presence of calcium hydroxide. It is, however, insoluble in ethanol and most other organic solvents. Thermally, when heated above its stability limit, it decomposes, with any remaining moisture being fully dehydrated at around 120°C.
Its pH-insensitive solubility provides effectiveness in acidic to neutral environments, compared to calcium carbonate, which requires gastric acid. This provides a consistent ionic dissociation (release of Ca²⁺) even in low-acid situations, favoring its unparalleled bioavailability. The citrate anion is a chelating agent that favors the absorption of calcium in the intestines without inhibiting iron absorption. Elementally, it contains approximately 21% weight-wise bioaccessible calcium.
Its triclinic crystal structure is defined by calcium ion-coordination with citrate carboxylate groups. Analytically, it is identified by CAS registry number 813-94-5 and characteristic spectroscopic fingerprints (e.g., IR absorption by carboxylate stretches at ~1600 cm⁻¹). Its stability, neutral taste, and well-behaved dissolution kinetics are a function of its physicochemical character, impervious to environmental humidity due to its anhydrous state.

Calcium Citrate Anhydrous Powder Specifications

Properties

*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.

Calcium Citrate Anhydrous Powder Applications

• Dietary Supplements: Because it is a highly bioavailable source of calcium (21% elemental Ca), especially for individuals with impaired stomach acid (e.g., older adults, taking medications that reduce stomach acid), due to its pH-independent solubility. Unlike calcium carbonate, doesn't need to be taken with food.
• Food Fortification: Used to fortify foods like plant milks, juices, breakfast cereals, and baked foods with calcium, exploiting its neutral taste, solubility, and resistance to processing damage.
• Pharmaceutical Uses: Utilized as a tablet binder/disintegrant and calcium ion donor in antacids, osteoporosis treatments, and chewable tablets because of its non-hygroscopic nature and purity.
• Industrial Uses: Utilized as a chelating agent in detergents (metal ions binder) and buffer/pH stabilizer in cosmetic and chemical manufacturing processes.
• Medical Nutrition: Vital in clinical nutrition formulations (e.g., tube feeding solutions) where rapid calcium absorption and solubility are of utmost importance.

Calcium Citrate Anhydrous Powder Packing

Our products are packed in custom-designed cartons of varying sizes based on the material size. The small ones are kept in PP boxes securely, and the larger ones are kept in customized wooden boxes. We do rigid packaging customization and also utilize appropriate cushioning material to achieve the maximum protection during transportation.

Packaging: Carton, Wooden Box, or Customized.
Kindly refer to the packaging details given above.