Potassium Benzoate, CAS# 582-25-2, is a potassium salt of benzoic acid manufactured through chemical synthesis, available as White granular . Potassium Benzoate is widely used as preservatives. It is widely accepted as safe food additive in many countries with E number E212. Foodchem International Corporation has been supplying quality Potassium Benzoate to customers all over the world for over 10 years.