Calcium phosphate monobasic monohydrate

Calcium phosphate monobasic monohydrate (CAS 10031-30-8) is an inorganic calcium salt of phosphoric acid, commonly referred to as monocalcium phosphate or MCP. It carries the molecular formula Ca(H2PO4)2·H2O and is commercially recognised under names including calcium dihydrogen phosphate and calcium biphosphate.

In food and feed production, MCP functions as a leavening acid, reacting with sodium bicarbonate to release carbon dioxide and provide controlled dough rise in baked goods. In fertiliser applications, it delivers both calcium and phosphorus in plant-available form, supporting root development and nutrient uptake. Pharmaceutical manufacturers use it as a tablet excipient where its buffering capacity helps stabilise pH-sensitive active ingredients.

Calcium phosphate monobasic monohydrate is available in food-grade and feed-grade specifications, with quality standards aligned to FCC and Ph.Eur. requirements. The substance is registered under REACH and is classified under HS code 31031090. Supply is available in 25 kg bags and bulk formats depending on grade.