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<p>[QUOTE=&quot;RickieB, post: 2024298, member: 2486&quot;]Just some plain and simple concepts of RUST!!</p><p><br /></p><ul> <li>What is the chemical name for the process of rusting? <br /> (It is oxidation.)</li> </ul><p> <ul> <li>What does iron react with to become rust? <br /> (It reacts with oxygen, and the electrolyte which transfers electrons between the iron and the oxygen.)</li> </ul><p> <ul> <li>Why do some iron objects rust while others do not? <br /> (The more iron present in an object, the faster it will rust if exposed to oxygen. Some &quot;iron&quot; objects are actually alloys, blends of metals containing substances that prevent or severely slow down rusting. For example, when iron is alloyed with other elements such as carbon, it makes steel which is a strong metal that doesn&#039;t rust quickly; if iron is alloyed with carbon and chromium, it makes a stronger form of steel that doesn&#039;t corrode. An example of this is most kitchen utensils.)</li> </ul><p> <ul> <li>Can rust be converted back to iron? <br /> (Yes, you can put energy in to remove the oxygen component of rust. After removal of the oxygen, pure iron remains. This is the process of how iron ore is converted to iron.)</li> </ul><p> <ul> <li>Why does it take a long time to see the rusting process occur when some types of metal objects are submersed in water for long periods of time? <br /> (Iron objects exposed to both water and oxygen will rust rapidly. However, iron objects alloyed to other metals will not rust as rapidly because the iron can&#039;t be oxidized as easily.)</li> </ul><p></p><p>&nbsp;Source:&nbsp; <a href="http://www.sciencenetlinks.com" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.sciencenetlinks.com" rel="nofollow">www.sciencenetlinks.com</a></p><p><br /></p><p>Just think of a paper clip on some paper money..exposed to a high humidity environment..moisture, O2, and paper clip = rust over time..lots of time..</p><p>The formation of rust gets is color from iron and is therefore absorbed into the paper over time as well..I am sure many of you have seen the outline of a paper clip on an older note.[/QUOTE]</p><p><br /></p>

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