Chlorine is a toxic, corrosive gas that is irritating to the eyes and to the respiratory system. It's used to to kill bacteria in drinking water, disinfect swimming pools, and in the production of pharmaceuticals, insecticides, pesticides, dyes, plastics and more. This Element of Surprise segment features the following experts: Tom Impey, Manager, Mermaid Pools Orleans; Amy Rand, Assistant Professor, Chemistry, Carleton University; and Peter Loock, Professor, Chemistry, Queen's University.

From the Curio.ca streaming audio-visual collection.