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     48    

48 Cd Cadmium

Transition metal, mass: 112.41 u, 6 stable isotopes (106, 108, 110, 111, 112, 114), cadmium 113 and 116 also occur naturally and have very long half-lifes. Abundance rank (earth/space): 63/47

Click image to magnify. Pure cadmium. Original size of each piece in cm: about 1
Cadmium Cadmium flakes
Cadmium is a bluish silvery, soft, ductile metal, which is a by-product in the production of zinc and other metals. It has a bad reputation, because it is in virtually every form very toxic and harmful to the environment. An important application are nickel-cadmium batteries, which, when defect, have to be disposed properly. Another one was cadmium sulfide, known as the pigment cadmium yellow.

Oxidized cadmium Oxidized and pure cadmium
Two oxidized pieces of cadmium, each about 2 cm in size. Cadmium monoxide, CdO, is a yellow-brown, highly toxic compound.

Piece of cadmium Another piece of cadmium
Another two pieces of pure cadmium, about 1 cm large.


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