What are the properties of cadmium?
Cadmium is a lustrous, silver-white, ductile, very malleable metal. Its surface has a bluish tinge and the metal is soft enough to be cut with a knife, but it tarnishes in air. It is soluble in acids but not in alkalis. It is similar in many respects to zinc but it forms more complex compounds.
What is cadmium used for?
Most cadmium used in the United States is extracted during the production of other metals such as zinc, lead, and copper. Cadmium does not corrode easily and has been used to manufacture batteries, pigments, metal coatings, and plastics.
Is cadmium a strong metal?
Cadmium is a heavy metal with many uses, including the manufacture of rechargeable batteries. Exposure to cadmium can affect the kidneys, lungs and bones. Cigarette smoke contains high levels of cadmium. Blood and urine tests can measure the amount of cadmium present in the body.
When was cadmium plating banned?
Cadmium has been banned in some types of plastic since 1992, and the ban has now been extended.
Is cadmium a good conductor?
The bluish-white metal that is known as cadmium is malleable, ductile and can easily be cut with a knife. Due to its excellence as an electrical conductor, cadmium is often used in electroplating and in batteries.
Is cadmium highly reactive?
Chemical properties Cadmium reacts slowly with oxygen in moist air at room temperatures, forming cadmium oxide: Cadmium does not react with water, though it reacts with most acids.
Why is cadmium used in cigarettes?
Cadmium is one of several chemicals in cigarette smoke that generate reactive oxygen species and thus places smokers at a greater risk of free radicals. As a result, smokers may have a greater need for antioxidant nutrients and phytochemicals (10).
Is cadmium safe to touch?
Cadmium is a metal used in the manufacturing of batteries, dyes, glasses and ceramics. Products containing cadmium are not harmful to touch but can be harmful if they are put in the mouth or swallowed, which can result in poisoning.
Is cadmium still used?
Most of the cadmium produced worldwide has been for use in rechargeable nickel–cadmium batteries, which have been replaced by other rechargeable nickel-chemistry cell varieties such as NiMH cells, but about half of the remaining consumption of cadmium, which is approximately 2,000 tonnes (2,200 short tons) annually, is …
Will cadmium plating rust?
Cadmium provides tough corrosion resistance in part because the finish is “sacrificial.” That is, cadmium “sacrifices” itself to protect the metal it covers. In the face of corrosive substances, the cadmium coating will corrode before the steel or other material it is covering.
Is cadmium a cigarette?
In general, the cadmium content in tobacco leaves ranges between 1 and 2 μg·g−1 dry weight, resulting in 0.5–1 μg cadmium per cigarette.
Is cadmium an insulator?
Cadmium is grouped among the elements known as transition metals. Certain transition metals can act as both electrical conductors and insulators depending on slight alterations in their chemical structure.
What is the properties of cadmium?
Cadmium is a soft, malleable, ductile, bluish-white divalent metal. It is similar in many respects to zinc but forms complex compounds. Unlike most other metals, cadmium is resistant to corrosion and is used as a protective plate on other metals.
Are there any promising cadmium complex compounds?
However, scientists are advancing in the field and new promising cadmium complex compounds with reduced toxicity have been discovered. Cadmium oxide was used in black and white television phosphors and in the blue and green phosphors of color television cathode ray tubes.
What is cadmium used for in paint?
To painters who work with the pigment, cadmium provides the most brilliant and durable yellows, oranges, and reds – so much so that during production, these colors are significantly toned down before they are ground with oils and binders or blended into watercolors, gouaches, acrylics, and other paint and pigment formulations.
What is the best handbook for cadmium environmental concerns?
“Cadmium Environmental Concerns”. PVC handbook. Hanser Verlag. p. 149. ISBN 978-1-56990-379-7. ^ Brady, George Stuart; Brady, George S.; Clauser, Henry R.; Vaccari, John A. (2002). Materials handbook: an encyclopedia for managers, technical professionals, purchasing and production managers, technicians, and supervisors.
