Iodine

Iodine is important in organic chemistry and very useful in medicine and photography. Lack of iodine is the cause of goitre (Derbyshire neck). The deep blue colour with starch solution is characteristic of the free element.

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Who discovered this element?Bernard Courtois in 1811 at France

How did it get it's name?From the Greek word iodes, violet. You can Find it in seaweed.

The melting point=113.7 ºC boiling point=184ºC. density=4.94g/cm cubed non-metal solid at room temperature.

http://www.thehealthyhomeeconomist.com/wp-content/uploads/2013/09/Iodine-Patch.jpg

Heals wounds, makes red mark when used on wound.(see left)

to try at a laboratoryAdd Iodine powder, alluminum powder and water and there would be a chemical reaction

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https://www.youtube.com/watch?v=wE3YGA3fQv0

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By:Dima Demler