What is a Potassium bisulfate (KHSO₄)?

Potassium bisulfate (KHSO₄) is a colorless or white crystalline or powdery compound formed from potassium (K) and sulfuric acid (H₂SO₄). It is a partially neutralized form of sulfuric acid, in which one hydrogen ion (H⁺) has been replaced by a potassium ion (K⁺). Potassium bisulfate is commonly used in the chemical industry, pharmaceuticals, and food processing. This compound functions as a strong acid due to its high acidity and is used in chemical reactions as an oxidizing agent or neutralizing agent. For example, it is employed as an acid in metal surface treatment and water treatment, and it can also be used as an acidity regulator in food and beverages. Potassium bisulfate has the property of decomposing at high temperatures, breaking down into sulfuric acid and potassium salts during thermal processes.

Due to its strong acidity, potassium bisulfate can be irritating to the skin and eyes, so it is important to handle it with care and wear protective equipment during use.

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