


Precipitated Calcium Carbonate (PCC)
Mini-Encyclopedia of Papermaking Wet-End Chemistry Additives and Ingredients, their Composition, Functions, Strategies for Use. PRECIPITATED CALCIUM CARBONATE (PCC). Composition: Most PCC added to the wet end of paper machines consists almost entirely of the calcite crystal form of CaCO3.The calcite crystal can have several different macroscopic shapes.
