Rust is the common name for a very common compound, iron oxide. Iron oxide, the chemical Fe2O3, is common because iron combines very readily with oxygen -- so readily, in fact, that pure iron is only rarely found in nature. Iron (or steel) rusting is an example of corrosion -- an electrochemical process involving an anode (a piece of metal that readily gives up electrons), an electrolyte (a liquid that helps electrons move) and a cathode (a piece of metal that readily accepts electrons). When a piece of metal corrodes, the electrolyte helps provide oxygen to the anode. As oxygen combines with the metal, electrons are liberated. When they flow through the electrolyte to the cathode, the metal of the anode disappears, swept away by the electrical flow or converted into metal cations in a form such as rust.
For iron to become iron oxide, three things are required: iron, water and oxygen. Here's what happens when the three get together:
When a drop of water hits an iron object, two things begin to happen almost immediately. First, the water, a good electrolyte, combines with carbon dioxide in the air to form a weak carbonic acid, an even better electrolyte. As the acid is formed and the iron dissolved, some of the water will begin to break down into its component pieces -- hydrogen and oxygen. The free oxygen and dissolved iron bond into iron oxide, in the process freeing electrons. The electrons liberated from the anode portion of the iron flow to the cathode, which may be a piece of a metal less electrically reactive than iron, or another point on the piece of iron itself.
The chemical compounds found in liquids like acid rain, seawater and the salt-loaded spray from snow-belt roads make them better electrolytes than pure water, allowing their presence to speed the process of rusting on iron and other forms of corrosion on other metals.
On the following page, you can check out more links about rust.
The gas that is required to allow rusting to occur is Oxygen
On the surface of stainless steel an ultrathin layer of chromium oxide after the contact with oxygen; this layer has the role of protection against rusting.
Rusting is a chemical reaction - an oxydation; the essential factor for iron rusting is oxygen.
Oxygen.
Both processes require Oxygen. Rusting (I think) is where metal reacts with oxygen and moisture and becomes oxidises. Burning or combustion, ALWAYS needs Oxygen to occur. Hope this helps!
Rusting is an oxidation - reaction with oxygen.
The gas that is required to allow rusting to occur is Oxygen
Rusting requires conditions such as moisture and air (oxygen).
On the surface of stainless steel an ultrathin layer of chromium oxide after the contact with oxygen; this layer has the role of protection against rusting.
by prevent the object away from the contact of oxygen. it can prevent an object from rusting.
Rusting of iron is caused by water in the presence of oxygen.
MOISTURE AND OXYGEN
When rusting occurs the mass of the substance increases since the rusting material reacts with the oxygen in air
Oxidation (rusting) of iron metal is the reaction of iron and oxygen
Rusting is a chemical reaction - an oxydation; the essential factor for iron rusting is oxygen.
When Iron became in contact with water and oxygen or other strong oxidants or acids the rusting took place. The rusting is an electrochemical process which started with the transfer of electrons form iron to oxygen. If salt is present then it also accelerate the rusting process.
Rusting