碳酸钙

Calcium carbonate is a calcium salt commonly found in shells and skeleton of marine animals.It is an inexpensive, non-toxic and easily available reagent with a wide range of applications such as uptake of CO2 and extraction of heavy metals and arsenic from ground water.Its crystals exist as 3 different polymorphs namely, calcite, aragonite, and vaterite.The kinetics of pyrolysis of calcium carbonate under non-isothermal conditions have been investigated.