KalziumPhosphatStoffwechsels

Kalziumphospha is a term used for calcium phosphate, a family of inorganic compounds containing calcium ions (Ca2+) and phosphate groups (PO4^3-). The most common forms include monocalcium phosphate Ca(H2PO4)2, dicalcium phosphate CaHPO4, and tricalcium phosphate Ca3(PO4)2. A structurally related mineral, hydroxyapatite, has the formula Ca10(PO4)6(OH)2 and constitutes the main inorganic component of bone and tooth enamel.

Calcium phosphate minerals occur naturally in rocks and soils and are major constituents of biological hard tissues. In vertebrates, hydroxyapatite crystals are embedded within a collagen matrix to form bone and also contribute to tooth enamel. The exact calcium phosphate phase present depends on pH, ion concentration, and the presence of carbonate or fluoride.

Industrial production involves reacting phosphoric acid with calcium-containing salts to form various calcium phosphate compounds. Monocalcium phosphate is used as a leavening agent in baking powders; dicalcium phosphate serves as a dietary supplement and anti-caking agent; tricalcium phosphate is used in dietary supplements, ceramics, and as a soil conditioner. Calcium phosphate cement is used as a bone-replacement material in some orthopedic procedures.

Safety and environmental considerations: Calcium phosphate compounds are generally of low toxicity, but elevated phosphate levels in soil or water can contribute to eutrophication. Proper handling requires standard chemical hygiene, and dietary uses should follow regulatory guidance on dosage.