Calcium Ascorbate

Description

Calcium Ascorbate is an odorless white to pale yellow crystalline powder. The color may change to pale

yellow on prolonged storage time. Calcium Ascorbate easily dissolves in water, hardly dissolves in ethanol

and is insoluble in chloroform and ethoxyethane.

Product identification

Chemical names:

Calcium di{(R)-2-[(S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate}dehydrate.

Synonyms: calcium ascorbate dihydrate; calcium L-ascorbate; ascorbic acid (calcium salt); vitamin C (calcium salt)

CAS No.: 5743-28-2 (as dihydrate)

Einecs No:227-261-5

E No: E 302

Empirical formula: C12H14CaO12•2H2O

Molecular mass: 426.35 g/mol

Solubility

Calcium Ascorbate easily dissolves in water, hardly dissolves in ethanol and is insoluble in chloroform and ethoxyethane.

Stability and storage

Calcium Ascorbate is fairly stable to air if protected from humidity, but is slightly sensitive to heat. It is less susceptible to discoloration than ascorbic acid. Calcium ascorbate is suitable for use in dry preparations only, because its solutions have a tendency to form precipitates of calcium oxalate. The product may be stored for 24 months from the date of manufacture in the unopened original container and at room temperature below 25°C. On prolonged storage, a slight yellow discoloration may occur which, however, does not affect the biological activity.

Uses

For the enrichment of dry food products.

For solid multivitamin and monovitamin preparations.

This product is not intended for use in the manufacture of sterile drug products. The purchaser assumes all responsibility for additional processing, testing, labelling and registration required for such use.

Compendial compliance

Calcium Ascorbate meets all requirements of the FCC. and USP. when tested according to these compendia.

Safety

This product is safe for the intended use. Avoid ingestion, inhalation of dust or direct contact by applying suitable protective measures and personal hygiene. For full safety information and necessary precautions, please refer to the respective Material Safety Data Sheet.