K2PO4

Dipotassium phosphate (K₂PO₄) is an inorganic ceramic compound belonging to the phosphate family, commonly encountered as a white crystalline solid with moderate mechanical stiffness. It is widely used in fertilizer formulations, food additives (as a buffering and emulsifying agent), and laboratory applications, while specialized ceramics research explores phosphate-based compounds for biocompatible coatings, dental cements, and thermal management applications. Engineers typically select K₂PO₄ systems when cost-effective chemical stability, water solubility control, or mild mechanical reinforcement in composite matrices are required, though it is generally not chosen for structural load-bearing roles where higher-stiffness ceramics like alumina or zirconia are more suitable.