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Bismuth Diamagnetic Properties

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Uploaded by on Jun 18, 2008

Bismuth (element no. 83) is one of the weirdest elements. Though encircle in the periodic table by other heavy elements with infamous toxicological history, Bismuth is considered the least toxic of these metals.

Bismuth is known for many strange properties - this video demonstrates its massive diamagnetic behavior:
Bismuth is repelled by magnets but for demonstration it is recommended to use rare-earth magnets, as kitchen-magnets are all too week.

Bismuth is rather expensive but for educational purposes it is worth consideration. For electromagnetic, physical, chemical and artistic purposes it is eminent.
For artwork and metal casting it is a wonderful replacement for the toxic Lead (Pb). Furthermore Bismuth forms low melting alloys with many other metals. In its pure form it is very brittle, with a reddish luster. Cooled slowly it forms large, beautiful crystals, covered with oxide layers in the colors of the rainbow.

Etching the surface to see the crystals can be done in a dilute solution of hydrochloride to which is added a small amount of hydrogen peroxide (1 part of HCL poured slowly in 3-5 parts of water. Then you add 1 part of 35-40% H2O2).
Dipping a piece of slowly cooled Bismuth in this solution will remove the oxide and reveal the beautiful crystals. The slower the cooling process is, the larger the crystal will be.

Enjoy the fun!

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Uploader Comments (jorgenskyt)

  • To RavnoUK,

    Thank you very much. I find it ordinary, but everything is relative, so I'll skim your videos too *s*

  • Thank you *S*

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All Comments (19)

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  • such property should be ignored.

  • @Lokivoid I am pretty sure superconductors are never diagmagnetic, at least while in a superconducting state- because all superconductors are impermeable to magnetic fields (source field pushes against itself), not creating an opposing field to the magnetic field.

  • Does ICE is magnetic? its water...so making a ice stick would be magnetic, theorically

  • Bismuth is so cool

  • those are the same size magnets i have. well, if there 3/4in by 3/8

  • Where do you get rods of bismuth...Ive searched and searched and cant find it even in rock shops (In Canada)

  • you should make a super thin rod of it so that way it will suspend ontop of magnets

  • uh... neat?

  • HOLY ASS

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