Nano precipitated calcium carbonate Items typical value Appearancewhite slurry Caco3(%) 50 Specific gravity(g/cm3)2.7(dried basis) Mean particle sizenm40max Bet surface area(m2/g)25 min Brightness 90 min Particle shapecubic Ph 8.5-10.0 Water(%) 46 The product is packed in plastic drums of 220-280 kgs, and the cubage of the drum is 200 liters.