Which ions are formed when phosphoric acid loses one, two, or three hydrogen ions?

As a triprotic oxyacid, phosphoric acid ($H_{3}P{O}_4$) can donate its three hydrogen atoms as protons in aqueous solution, resulting in the formation of three distinct phosphate ions.1

The ions formed through the successive loss of hydrogen ions are as follows:

• Loss of one hydrogen ion: Forms the dihydrogen phosphate ion ($H_{2}P{O}_4^{-}$).21
• Loss of two hydrogen ions: Forms the hydrogen phosphate ion ($HP{O}_4^{2-}$).21
• Loss of three hydrogen ions: Forms the phosphate ion ($P{O}_4^{3-}$).21

These ions are fundamental to the formation of various phosphate salts, which serve critical roles in industrial, agricultural, and biological contexts.321