What Compound Name Is HPO4?

By Staff WriterLast Updated Apr 7, 2020 6:21:47 AM ET

The compound ion HPO4 is called hydrogen phosphate. Common chemical compounds that contain hydrogen phosphate include ammonium hydrogen phosphate, potassium hydrogen phosphate, sodium hydrogen phosphate, lithium hydrogen phosphate, tin(IV) hydrogen phosphate and iron(II) hydrogen phosphate.

The name for HPO4 is derived from the formula where H represents hydrogen, P represents phosphorus and O represents oxygen. The ion hydrogen phosphate carries a charge of -2 and is a salt of phosphoric acid through its conjugate base of dihydrogen phosphate. Hydrogen phosphate is formed when phosphoric acid loses two protons through a chemical reaction. The conjugate base of hydrogen phosphate is simply phosphate. The molar mass of hydrogen phosphate is 95.97 grams per mole.