Specifications: 1) Cl: 0.7% max. 2) SO4: 0.03% max. 3) Fe2O3: 0.004% max. 4) Water insoluble matter: 0.04% max. 5) Ignition on loss: 0.8% max. 6) Bulk density: 0.7g/ml min. 7) Particle size: 0.18mm 8) Drive remaining: 70% min. Packing: PP woven bag of 25kg, 50kg or 1,000kg net each with PE liner inside