Green Ca-source of cockle shells converted to calcium acetate for environmental sustainability.

This work aimed to synthesize and characterize the calcium acetate monohydrate (Ca(CHCOO)·HO) from the exothermic reaction between CaCO powder derived from cockle shells with three different acetic acids (8, 10, and 12 mol L) concentrations by the rapid and easy process without pH and temperature control to lead to cheap chemical production. The physicochemical characteristics of all synthesized Ca(CHCOO)·HO samples are investigated based on the chemical compositions, crystal structures, vibrational characteristics, morphologies, and thermal behavior to confirm the target compound. A suitable concentration of 10 mol L CHCOOH was chosen to produce Ca(CHCOO)·HO with the highest yield (96.