... 3.Whiteness:96% 4.Denstiy (g/cm3):2.7 calcium carbonate for pvc pipe1.useage: Paint, Dope, Rubber, PVC pipe, Paper making ... ,create the Calcium hydroxide,then through carbonize,dehydrate,dry and smash.3.specification:ApperanceWhite powderSurface Area, m2/g ( ... Particles of sheath of PVC wires and cables, PVC leatheroid, PVC pipe material, PVC section material, particles of TRP, PVC threads. 6.MOQ:one ...