QUÍMICA VERDADEIRAMENTE VERDE – PROPRIEDADES QUÍMICAS DO CLORO E SUA ILUSTRAÇÃO POR EXPERIMENTOS EM ESCALA MINIATURIZADA^†

TRULY GREEN CHEMISTRY – CHLORINE'S CHEMICAL PROPERTIES AND ITS PRESENTATION BY EXPERIMENTS ON A MINIATURISED SCALE

Abstract

Chlorine, one of the most frequent elements on earth and most important key chemicals, is indispensable in the syllabi of school and university courses in Inorganic Chemistry. However, its toxicity and high volatility preclude experimental demonstration of its properties in secondary and high schools and most university labs. This paper summarises the industrial role of chlorine and presents miniaturised experiments demonstrating some of the processes used in Industrial Inorganic Chemistry. Furthermore, experiments illustrating important concepts of Inorganic Chemistry such as Ion Bonding and Molecular Orbital Theory are describe.