... (%)98.%Specific rotation+24.8~+25.3°Loss on drying≤0.5%Fe mg/kg≤5 mgSulphate (SO42-)≤0.05% ... :1, Kraft paper bag or pp bag of 25 kg or 22.7 kg net each2, 3g, 9g, 10g, 18g, 50g ... , 80g, 100g, 200g, 227g, 250g, 500g, 1000g polythene bags in carton3, 454g*25 ... *2/carton, 454g*25/carton, 454g*50/carton,400g*40/carton, 400g ...