Cobalt - A METAL FROM CAT'S LITTER!

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Do not repeat the experiments shown in this video!
Hi everyone! In this video I would like to tell you about the properties of such a metal as cobalt and also about why its compounds are added to litter tray. In the periodic table of chemical elements cobalt is located in the group 9, between iron and nickel in so-called ferromagnetic pyramid. The history of the use of cobalt dates back from thousands of years ago because its compounds have been added to glass, which gave glass a beautiful blue tint since the Bronze Age. Officially this metal was discovered by a Swedish chemist, Georg Brandt, in the early 18-th century. Nowadays cobalt is mostly extracted from cobalt-containing minerals which are mined along with nickel and copper and in this process cobalt is a by-product. After being electrolytically refined, pure metallic cobalt looks like gray metal the density of which is similar to that of copper. As I mentioned earlier cobalt is a ferromagnetic or in other words it strongly attracts to magnets and it can also get magnetized when placed in close withinity to a strong magnetic field. I even managed to magnetize a piece of cobalt which is why it began to get attracted to other cobalt pieces. Because of this property, this metal is used to make a magnetic alloy with samarium. Cobalt-samarium magnets have much stronger magnetic properties than usual ferrite magnets and also high operating temperature. Such metals, however, are quite fragile and they need to be dealt with very carefully.

Видео Cobalt - A METAL FROM CAT'S LITTER! канала Thoisoi2 - Chemical Experiments!