... date: within 15 days Potassium sorbate1.Chemical Name: Potassium sorbate.2,4-di-ethene acid kalium, 2,4-Hexadienoic acid ... crystalline powder6.Use: It is used for food, cosmetic, medical health product and preservative for tobacco As unsaturated acid,it also used ... metals(as Pb), ≤%10ppm0.001Aidehyde10ppm0.001Arsenic, ≤%3ppm0.0003Lead, ≤%5ppm0.0002 food preservative potassium sorbate food grade