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Characteristics white granular Assay(C6H3O2K) 99.0%-101.0% Chloride(as Cl) ≤0.018% Sulfate(as SO4) ≤0.038% Aldehyde(as HCHO) ≤0.1% Acidity or Alkalinity ≤1.0% Heavy Metals(as Pb) ≤10ppm Arsenic(as As) ≤2ppm Lead(Pb) ≤5ppm Loss on Drying ≤1.0%
food grade potassium sorbate Fcciv