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<p>[QUOTE=&quot;Collecting Nut, post: 2524761, member: 74863&quot;]<b>Ruthenium</b> is a <a href="https://en.wikipedia.org/wiki/Chemical_element" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Chemical_element" rel="nofollow">chemical element</a> with symbol <b>Ru</b> and <a href="https://en.wikipedia.org/wiki/Atomic_number" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Atomic_number" rel="nofollow">atomic number</a> 44. It is a rare <a href="https://en.wikipedia.org/wiki/Transition_metal" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Transition_metal" rel="nofollow">transition metal</a> belonging to the <a href="https://en.wikipedia.org/wiki/Platinum_group" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Platinum_group" rel="nofollow">platinum group</a> of the <a href="https://en.wikipedia.org/wiki/Periodic_table" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Periodic_table" rel="nofollow">periodic table</a>. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. The <a href="https://en.wikipedia.org/wiki/Baltic_governorates" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Baltic_governorates" rel="nofollow">Baltic</a> German scientist <a href="https://en.wikipedia.org/wiki/Karl_Ernst_Claus" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Karl_Ernst_Claus" rel="nofollow">Karl Ernst Claus</a> discovered the element in 1844 and named it after his homeland, the <a href="https://en.wikipedia.org/wiki/Russian_Empire" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Russian_Empire" rel="nofollow">Russian Empire</a> (one of Russia&#039;s Latin names is <a href="https://en.wikipedia.org/wiki/Ruthenia" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Ruthenia" rel="nofollow">Ruthenia</a>). Ruthenium is usually found as a minor component of <a href="https://en.wikipedia.org/wiki/Platinum" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Platinum" rel="nofollow">platinum</a> ores; the annual production is about 20 <a href="https://en.wikipedia.org/wiki/Tonne" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Tonne" rel="nofollow">tonnes</a>.<a href="https://en.wikipedia.org/wiki/Ruthenium#cite_note-JMM-4" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Ruthenium#cite_note-JMM-4" rel="nofollow">[4]</a> Most ruthenium produced is used in wear-resistant electrical contacts and thick-film resistors. A minor application for ruthenium is in platinum <a href="https://en.wikipedia.org/wiki/Alloy" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Alloy" rel="nofollow">alloys</a> and as a chemistry <a href="https://en.wikipedia.org/wiki/Catalysis" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Catalysis" rel="nofollow">catalyst</a>.</p><p><br /></p><p>Isn&#039;t Google and Wikipedia a wonderful and useful tool? <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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