Tags: Chemical Compound, Chemical Substance.
Potassium benzoate (E212) the potassium salt of benzoic acid is a food preservative that inhibits the growth of mold yeast and some bacteria. It works best in low-pH products below 4.5 where it exists as benzoic acid. Acidic foods and beverages such as fruit juice (citric acid) sparkling drinks (carbonic acid) soft drinks (phosphoric acid) and pickles (vinegar) may be preserved with potassium benzoate.