Kaliumbenzoaat

Kaliumbenzoaat is the potassium salt of benzoic acid. Its chemical formula is C7H5KO2. It appears as a white crystalline powder or granules and is readily soluble in water. Kaliumbenzoaat is primarily used as a food preservative, often listed as E212 on food labels. It functions by inhibiting the growth of mold, yeast, and some bacteria. Its effectiveness is pH-dependent, working best in acidic conditions.

The substance is synthesized by neutralizing benzoic acid with potassium hydroxide. It is commonly found in acidic foods such as fruit juices, soft drinks, jams, jellies, and pickles. While generally recognized as safe when consumed within approved limits, some individuals may experience adverse reactions, though these are rare. Regulatory bodies in various countries establish maximum usage levels for kaliumbenzoaat in food products to ensure consumer safety. Beyond its food additive applications, kaliumbenzoaat can also be found in certain cosmetic products and pharmaceuticals for its preservative properties.