Potassium+Bisulfate

A [|solution] of potassium bisulfate behaves as if the two related compounds ( K2SO4 and H2SO4 ) were side by side uncombined. Adding [|ethanol] to a solution of potassium bisulfate precipitates out sulfate. Mercallite, the mineralogical form of potassium bisulfate, occurs very rarely. Misenite is the other, more complex, potassium hydrogen sulfate.
 * Potassium bisulfate** is the [|potassium] [|salt] of [|bisulfate] anion, with the molecular formula KHSO4 . This compound is commonly used in the conversion of [|tartrates] to bitartrates in wine. Potassium bisulfate is also used as a disintegrating agent in [|analytical chemistry].