Buy Calcium Carbonate powder CaCO3 - Chalk Whiting UK ...
CALCIUM CARBONATE Technical Grade Calcium carbonate, commonly known as chalk or calcite is a non-combustible, non-toxic, odourless white powder with the formula CaCO3. It occurs naturally in the minerals aragonite, calcite, limestone and marble which makes up about 4% of the earths crust. Calcium carbonate is produced by the sedimentation of the shells of small