Ascorbic acid/vc/vitamin c 1.BP/USP/FCCV/EP 2.ISO,GMP,FDA,HACCP,HALAL, ... 3.25kgs/fiber drum or 25kgs/carton Ascorbic acid/vc/vitamin c1.BP/USP/FCCV/EP2. ISO,GMP,FDA,HACCP,HALAL ... temperature)Oxalic Acid0.2% maxSulphate Ash(Residue on Ignition)0.1% maxSpecific Optical Rotation+20.5~+21.5° [alpha] 20, D ...