July 9, 2013
Gallium — The metal that melts in your hand
From A Must Need: "The chemical element gallium does not exist in pure form in nature, but since it's so magical and cool looking all solid-to-liquid-at-the-touch-of-a-human-hand and all, of course man figured out a way to extract it from bauxite and zinc ores to use as his personal plaything. The shiny silvery masses begin liquifying at 85.85°F; when placed on the palm... a hunk of gallium will melt into an oozy yet glistening metallic blob in five to seven minutes."
"Unlike mercury, gallium is non-toxic. You could probably even swallow it, as it has been incorporated into some pharmaceuticals and radiopharmaceuticals for medical applications."
"All gallium available for public acquisition appears to be 99.99% pure. It is sold on Amazon in quantities ranging from 10 to 500 grams."
[via DUDE!!! I WANT THAT...]
July 9, 2013 at 12:01 AM | Permalink
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Low melting point alloys are often used for holding oddly shaped pieces for machining. The stuff we've used in the lab "Cerro", is sold by CS alloys ( http://www.csalloys.com/ ) and is a lot of fun to play with.
Posted by: Scott | Jul 9, 2013 7:29:13 PM
Posted by: 6.02*10^23 | Jul 9, 2013 2:09:24 AM
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