DECOMPOSITION OF CACO3 IN THE PRESENCE OF ORGANIC-ACIDS

In the present study the possibility of partial decomposition of CaCO3 up to 80 degrees C by using organic acids has been investigated. As acids in the acid - CaCO3 reaction, citric and oxalic acid have been used. The formation of the crystalline compounds during the acid reactions as also their decomposition during the burning process have been studied through XRD analysis and loss on ignition measurements. The results led to the conclusion that a variety of organic acids could be successfully used resulting in energy saving by lowering the decomposition temperature.