... 98.0%Specific rotation+24.8~+25.3°Loss on drying≤0.5%Fe mg/kg≤5 mgSulphate (SO42-)≤0.05% ... , 80-10, 80-120 meshPacking:1, Kraft paper bag or pp bag of 25 kg or 22.7kg net each. 2, 3g, 5g ... , 454g, 500g, 1000g polythene bags in carton3, 454g*25*2 /carton, 454g*25/carton, 454g*40/carton, 400g*40/carton, 400g ... 50/carton, 100g*80/carton, 100g*100/carton, 3g*80*25/carton, 50g*200/carton, etc.4, Or as clients ...