KnowraPotassium bisulfateLinked fromLinked fromThe 2 pages that link to Potassium bisulfate, each with the reason it gives.All 2Compared with 2Potassium sulfateCompared with: Its hydrogen sulfate ion makes it acidic, unlike neutral potassium sulfate.Sodium bisulfateCompared with: It shares the hydrogen sulfate anion but has potassium instead of sodium.