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Tin (less prone to corrosion) keeps the oxygen in the air from contacting iron, but when the "tin layer" is damaged the oxygen is able to react with the iron and therefore speeds up the rate of corrosion
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoFormally, salt does not rust iron; only oxygen can do that. However, the formation of rust kinetically depends on the speed of electrical micro-cell reactions between different parts of the iron surface, and any material, such as salt, that forms a strongly conductive solution with almost ubiquitously present water facilitates the process under most practical circumstances.
Wiki User
∙ 7y agoYou may be thinking of the dramatic decomposition of pure tin known as "tin pest". When shiny metallic tin is exposed to temperatures below -30 C it converts to a dull grey powder. This is a conversion between the beta and alpha states of the tin molecule. This was observed in medieval churches when the pure tin organ pipes would suddenly decompose on a cold winter night (making the congregation see the devil's hand in the event). As soon as any part of a tin object becomes damaged by the conversion it spreads through the whole piece of material.
Wiki User
∙ 10y agoTin ( doent rust ) however iron does and most tin plating is done on iron. the plating gets damaged and the oxygen reaches the iron which caused corrosion to begin.
Wiki User
∙ 7y agoTin coating is for protection of iron.
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Why thermal conductivity of rusted iron decreases?
Rusted iron is not pure iron; it is an iron oxide.
Why is the mass of a rusted nail greater than the mass of the nail before it rusted?
oxygen atoms are added to iron atoms to form a molcule with a combined mass of iron and oxygen
What is the chemical composition of rusted iron?
Rusted iron does not always have the same chemical composition. The rust itself always contain both iron and oxygen, but the proportions between these two elements can vary considerably. If there is plenty of oxygen and time, the rust itself approaches the composition of pure ferric oxide, with formula Fe2O3. Unless the original iron was very thin, however, some un-rusted iron always remains, so that the total composition of the rusted iron overall is still uncertain, unless measured for a particular sample.
Why iron rod loos its shiny and rusted when in kept in open air?
as oxide of iron is formed on the nail in contact with the environment
Facts about nails that rust?
iron (steel) for example if its not galvanized
What happens to iron when it gets rusted?
It gets damaged and forms holes.
Why thermal conductivity of rusted iron decreases?
Rusted iron is not pure iron; it is an iron oxide.
Why isn't rusted iron as attracted to a magnet as non rusted iron?
Iron oxide (rust) Isn't magnetic. So rusted iron will have less pure iron in it. making it less magnetic.
What does the inside of a rusted out cast iron sewer pipe look like?
Rusted cast iron.
Is the sphinx rusted?
No, the Sphinx is carved from limestone. Iron rusts, limestone doesn't rust. But its limestone is damaged, both by weathering and deliberate acts of man.
What is the nature of iron rusted?
Rust on iron is a hydrated iron oxide.
Is rusted iron a mixture?
yes
What happens when iron nail are placed in copper sulphate solutions with word equation?
If iron nails are placed in a copper sulphate solution they turn green and rusted which means they become copper plated nails.I think the word equation is :iron + copper sulphate - copper + Iron sulphate.Iron displaces copper
What is the surface materials on mars?
Rusted Iron that rusted over thousands of millions of years!
What can happen to an iron object that is left outdoors?
it will be rusted because of the H2O and oxgen
Why iron pillar has not been rusted?
This is not pure iron but a special steel.
What elements are in a rusted car?
Iron and oxygen
