solubility of glacial acetic acid in water_solubility of glacial acetic acid in water

Sikkerhedsdatablad for Iseddikesyre (Glacial Acetic Acid)

Glacial acetic acid is widely used beyond laboratory environments. It serves as a key ingredient in the production of synthetic fibers, plastics, and food additives. Its strong acidity makes it an effective pH regulator in various formulations, while its solvent properties facilitate the extraction of certain compounds in cosmetic and pharmaceutical products.

CH₃COOH ⇌ CH₃COO⁻ + H⁺

In contrast, weak acids only partially dissociate in water. Glacial acetic acid fits this definition; when it is mixed with water, it only partially ionizes to form acetate ions (CH₃COO⁻) and hydrogen ions (H⁺). This incomplete dissociation produces a milder acidic environment with a higher pH compared to strong acids. The dissociation constant, known as the acid dissociation constant (Ka), signifies this property. For acetic acid, Ka is approximately 1.8 x 10⁻⁵ at 25°C, illustrating its weak acidity.