Hüdrogeenfosfaat

Hüdrogeenfosfaat refers to a chemical compound that is an anion with the formula [HPO4]2-. It is one of the ions derived from phosphoric acid (H3PO4). Phosphoric acid can lose one, two, or three protons, resulting in the dihydrogen phosphate ion (H2PO4-), the hydrogen phosphate ion (HPO42-), and the phosphate ion (PO43-), respectively. Hüdrogeenfosfaat is also commonly known as the dibasic phosphate ion.

In aqueous solutions, the equilibrium between these phosphate species depends on the pH. Hüdrogeenfosfaat is typically present in neutral to alkaline conditions. It plays a crucial role in biological systems as part of the buffering system that maintains the pH balance in cells and bodily fluids. For example, the phosphate buffer system in blood consists of dihydrogen phosphate and hydrogen phosphate ions.

Hüdrogeenfosfaat compounds are often salts. Examples include sodium hydrogen phosphate (Na2HPO4) and potassium hydrogen phosphate (K2HPO4). These salts have various applications in industry, food processing, and medicine. In food, they can act as emulsifiers, stabilizers, and acidity regulators. In medicine, they are used as laxatives and in intravenous solutions. The presence of the hydrogen phosphate ion in water can contribute to hardness and can be involved in precipitation reactions with calcium and magnesium ions.