From Eggshells to Quicklime: Using Carbonate Cycle as an Integrating Concept To Introduce Students to Materials Analysis by TGA and FTIR

• Fernando Luna Vera ^[1] ; Marcelo Guancha Chalapud ^[1] ; Ingrid Castillo Viveros ^[1] ; Edgar Alexander Vásquez Medina ^[1]
  1. [1] Centro Nacional de Asistencia Técnica a la Industria (ASTIN-SENA), Colombia
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 95, Nº 4, 2018, págs. 625-630
• Idioma: inglés
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• Resumen

  • In this paper, we report an experiment intended as a tool to introduce chemistry and materials science students to several chemical concepts through the determination of the best experimental conditions for the formation of calcium oxide (lime) from a source of high content of calcium carbonate (eggshells). Thermal gravimetric analysis (TGA), infrared spectroscopy (FTIR), and qualitative tests were used to optimize the experimental conditions of calcination temperature and time for the formation of calcium oxide.