Mono Calcium Phosphate
Calcium Dihydrogen Phosphate
Mono calcium phosphate (MCP), also known as calcium dihydrogen phosphate, is a white granular or crystalline powder with formula Ca(H2PO4)2·H2O (monohydrate) and molecular weight 252.07 g/mol. It has a density of 2.22 g/cm³, melting point >109°C (decomposes), and is highly soluble in water (18 g/100mL at 30°C), slightly acidic in solution (pH 3-4). Insoluble in ethanol, it is hygroscopic and produced by reaction of calcium carbonate with phosphoric acid; used as a leavening agent and nutrient supplement.
Mono Calcium Phosphate
Used as leavening agent in baked goods for gas production; nutrient fortifier in foods providing calcium/phosphorus; pH control in beverages and dairy; animal feed additive for bone health and growth; fertilizer for soil acidification and phosphorus supply; in pharmaceuticals as excipient.
Nonhazardous per GHS but avoid dust causing eye/respiratory irritation; prolonged exposure may lead to skin dryness. Low toxicity LD50 oral (rat) >5000 mg/kg; non-combustible but decomposes to phosphorus oxides at high heat. Incompatible with strong bases; use PPE, ventilate; no carcinogenic effects.
Typically in 25kg multi-wall paper bags with PE liners or 50kg fiber drums to prevent moisture; store tightly closed in cool, dry areas; empty containers retain residue—do not reuse, dispose per local regulations.
