Purity (base on c4h4o4) % 99.50~100.50 (dry basis) Heavy metal (base on pb) ppm 10 Arsenic (base on as) ppm 3 Water content % 0.5 Melting range oc 286~302 Residue on ignition % 0.1 Chroma (in 5% ethanol) # 15 Maleic acid % 0.1 25kg net in plastic woven bag lined with pe bag. 18 mt/20'fcl (with pallet) or 20mt/20'fcl (without pallet).
