Essay On Rust

Rust is another name for iron oxide, which occurs when iron or an alloy with iron, like steel, is exposed to oxygen and moisture for a period of time. Eventually, the oxygen combines with the metal, forming a new compound called an oxide and weakening the bonds of the metal itself and iron structure will degrade and fall apart. It therefore has very important economic and environmental implications which I will discuss later.

Rust forms when iron undergoes oxidation, but not all oxidation forms rust. Other metals can corrode in similar ways.

The rusting of iron is an electrochemical process that begins with the transfer of electrons from iron to oxygen. The iron gives up electrons while the oxygen gains the electrons (Oxidizing). The rate of corrosion is affected by water and accelerated by electrolytes (e.g. Salts), consider for example; the impact of road salt on the acceleration of corrosion of the chassis and body of vehicles.

Below, the step-by-step chemical equations representing the production of rust are shown:

2Fe(s) + 2H2O(l) + O2(g) -> 2Fe2+(aq) + 4OH-(aq) The water is oxidized

Fe2+(aq) + 2OH-(aq) -> Fe(OH)2(s)

The iron bonds with two Hydroxide ions, oxidizing the iron

2Fe(OH)2(s) + O2 -> 2Fe(OH)3(s)

Iron

For example, it usually looks unpleasant and feels rough to the touch, which for ships would mean extra friction when moving through the water which requires extra fuel for transport. Hence rust also increases inefficiency. It damages the iron or alloy, corroding it. It weakens the bonds, which causes damage to the metal structure or object and gradually leads to the disintegration of the metal. Rust and corrosion cost the world industry a lot of money, especially where the air is moist. In many countries, the majority of industry is situated along broad coastal strips, sea air leads to a high level of rusting taking place. Rust has almost become part of our everyday