potassium bisulfate

variants: or potassium acid sulfate

Definition of potassium bisulfate

: a crystalline salt KHSO4 that gives an acid reaction in solution, that is made by treating potassium sulfate with sulfuric acid, and that is used chiefly in making cream of tartar and as a flux; potassium hydrogen sulfate

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Cite this Entry

“Potassium bisulfate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/potassium%20bisulfate. Accessed 27 Sep. 2020.

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