... Granule 90SF,93SF,95SF,97SF 20Kg Carton or Drum Vitamin C Ascorbic Acid DC granule(90%,93%,95%,97%) CAS No ... % Dry loss: 2% Total arsenic(As,mg/kg): 3 Heavy metal(base on Pb,mg/kg): 20 Function and characteristicWide application:prevent ... or Drum[ Standard ]In-house Standard Ascorbic Acid DC Vitamin C Granule 90SF,93SF,95SF,97SF