Oxidising Collection

Cut sodium metal. Chunk of the reactive metallic element sodium (Na). The shiny surface has been exposed by a knife cutting the soft metal

Tarnished sodium metal. Chunk of the reactive metallic element sodium (Na). Part of this surface was recently exposed by a knife cut

Illustration of copper pipe anode, showing how positive terminal on battery draws electrons from anode oxidising copper atoms to copper cations

Copper oxidation experiment, artwork C017 / 3606
Copper oxidation experiment. Computer artwork of a copper sheet being heated with a Bunsen burner. When heated, the reddish-coloured metal copper reacts with the oxygen in the air to form copper

Historical iron corrosion samples C016 / 2040
Historical iron corrosion samples. Series of glass tubes with 70-year-old samples of iron under different conditions, demonstrating the effect on corrosion. The years vary between 1907 and 1910

Sodium burning in air. Sodium (Na) is a highly reactive metallic element from group one of the periodic table. It burns in air, reacting with atmospheric oxygen (O2) to form sodium oxide (Na2.O)

Oxidising Tea, India
Tea oxidisation in India

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Oxidation: A chemical process that transforms a substance by adding oxygen, often resulting in the formation of a new compound and the release of electrons. This redox reaction can occur naturally or artificially, leading to various outcomes such as rusting, aging, or the production of valuable commodities like copper wire. Oxidation's intricate dance of electrons shapes our world, from the rusting of iron to the ripening of fruit, and holds the key to understanding many fundamental chemical processes.