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Cadmium: Difference between revisions
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== Properties == | == Properties == | ||
Cadmium is very resistant to corrosion, particularly in acidic and seawater environments. It has a low melting temperature, good electrical and thermal conductivity. Compounds containing cadmium possess an amazing resistance to high stress and high temperature. They also lower ultraviolet light degradation of certain plastics. Some cadmium electronic compounds exhibit semi-conducting properties, so they are used in solar cells and many electronic appliances. Cadmium pigments produce intense yellow, orange and red colors, and are widely used in plastics, glasses, ceramics, enamels and artists’ colors.<ref name=Cadmium>[http://www.cadmium.org/ Cadmium] Unknown author, International Cadmium Association, Accessed December 1st, 2010.</ref> | |||
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Cadmium was used as a leather tanning agent and a pigment in dye until the 1990's. It is still used in rechargeable Ni-Cd batteries, solar cells, solder alloys, some paint and plastic production, engraving, cadmium vapor lamps, some parasite treatment for farm animals, old television tubes and to electroplate other metals.<ref name=toxipedia>[http://toxipedia.org/display/toxipedia/Cadmium+(Cd) Toxicity] Unknown author, Toxipedia, Accessed December 1st, 2010.</ref> | Cadmium was used as a leather tanning agent and a pigment in dye until the 1990's. It is still used in rechargeable Ni-Cd batteries, solar cells, solder alloys, some paint and plastic production, engraving, cadmium vapor lamps, some parasite treatment for farm animals, old television tubes and to electroplate other metals.<ref name=toxipedia>[http://toxipedia.org/display/toxipedia/Cadmium+(Cd) Toxicity] Unknown author, Toxipedia, Accessed December 1st, 2010.</ref> | ||
By far, it is most commonly used in nickel-cadmium batteries. It is used in the form of cadmium hydroxide. The batteries themselves are commonly used in the railroad and aircraft industries for starting the vehicles, and also serve as emergency power for these. In addition, they are used in many common appliances such as cordless power tools, cell phones, camcorders, lap tops, portable household appliances and some toys. These batteries are fairly cheap and well suited for high power applications. They generally last for a long time, and when compared to other types of batteries, work very well in extreme high and low temperatures.<ref name=Cadmium | By far, it is most commonly used in nickel-cadmium batteries. It is used in the form of cadmium hydroxide. The batteries themselves are commonly used in the railroad and aircraft industries for starting the vehicles, and also serve as emergency power for these. In addition, they are used in many common appliances such as cordless power tools, cell phones, camcorders, lap tops, portable household appliances and some toys. These batteries are fairly cheap and well suited for high power applications. They generally last for a long time, and when compared to other types of batteries, work very well in extreme high and low temperatures.<ref name=Cadmium/> | ||
== History == | == History == | ||
