PO₄³⁻
Phosphate
PO₄³⁻ is the chemical formula for the phosphate ion. The ion contains one phosphorus atom and four oxygen atoms. It has a -3 charge due to the presence of three extra electrons. The phosphate ion is important in biology as it is a component of DNA, RNA, ATP, and ADP. It also plays a crucial role in bone and teeth formation in the human body. In terms of its chemical properties, the phosphate ion is a strong base and can act as a buffer in aqueous solutions. It also forms insoluble salts with many metals, such as calcium, which leads to its use as a water softener.
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