Ca2PO42

Ca2PO42, also known as calcium diphosphate or dicalcium phosphate, is a compound composed of calcium ions (Ca2+) and phosphate ions (PO42-). It is a salt that forms when calcium oxide reacts with phosphoric acid.

This compound has several applications in the food and pharmaceutical industries. In food production, Ca2PO42 is used as an anti-caking agent and is also a common excipient in many vitamins and minerals. In the pharmaceutical industry, it serves as an inert diluent and stabilizer.

From a chemical perspective, Ca2PO42 is known to have a layered structure, which is attributed to its isomorphous substitution. Its stoichiometric composition has a molar ratio of 2:1 between calcium and phosphate. At room temperature, this compound is stable and crystalline in nature.

Ca2PO42 can be synthesized through the reaction of calcium oxide with phosphoric acid, typically in a controlled environment to prevent contamination. Its purification can be achieved using various methods, including recrystallization and melting.

Ca2PO42 has been encountered in real-world processes, such as when phosphoric acid and calcium-containing substrates interact. This compound's properties make it relevant in diverse areas of research and application, from industrial to biological studies.