Sulfate Ions

Some articles on sulfate ions, ions:

Negative P H - Applications - Seawater
... The total scale was defined using a medium containing sulfate ions ... These ions experience protonation, H+ + SO42− ⇌ HSO4−, such that the total scale includes the effect of both protons (free hydrogen ions) and hydrogen sulfate ions T ... relationship between hydrogen ions and fluoride ions, H+ + F− ⇌ HF ...