Shape and Properties of Calcium Carbonate Obtained by Thermal Decomposition of Calcium Acetate

Abstract

The production of calcium carbonate by the thermal decomposition of calcium acetate was tried. Calcium acetate changed into calcium carbonate (calcite structure) at a calcining temperature about 400°C. The particles were large and tabular polycrystalline aggregates of 0.3-1.4mm long and 0.06mm across with low whiteness (under 40%), large oil absorption (95-110ml/100g) and small specific surface area (2-7m²/g).