... : within 15 days Potassium sorbate1.Chemical Name: Potassium sorbate.2,4-di-ethene acid kalium, 2,4-Hexadienoic acid potassium salt 2.Molecular Formula:C6H7KO23.Molecular ... : (1)25kg (net weight)carton lined with plastics bag, (2)25kg(net weight)woven bag or kraft paper bag lined ... ), ≤%10ppm0.001Aidehyde10ppm0.001Arsenic, ≤%3ppm0.0003Lead, ≤%5ppm0.0002 food preservative potassium sorbate food grade