K3PO4, or potassium phosphate, is a chemical compound made up of three potassium ions (K⁺) and one phosphate ion (PO₄³⁻). It is commonly used in fertilizers, food additives, and as a buffering agent in various chemical applications. Its ability to provide essential nutrients makes it important in agriculture and food production. In addition to its agricultural uses, K3PO4 plays a role in the pharmaceutical industry and in laboratory settings. It helps maintain pH levels in solutions, which is crucial for many biochemical processes. Overall, potassium phosphate is a versatile compound with multiple applications in different fields.