Offering high quality pharmaceutical calcium carbonate, these products have very high CaCO3 content and very low impurities, especially the Pb, As, Hg, and Fe contents, their specifications conform to USP30, EP2005, BP2004 and CP2005. Clean odorless, fine white crystal. Being widely used in pharmaceutical area with CP2005 and USP-30 according to the requests of clients. The content of Arsenic and Lead is less than 0. 3ppm.