cadmium

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cadmium

 (Cd) [kad´me-um]
a chemical element, atomic number 48. (See Appendix 6.) Inhalation of cadmium fumes causes pulmonary edema with proliferative interstitial pneumonia and various degrees of lung damage. Cadmium poisoning may occur due to occupational exposure, smoking, and ingestion of certain foods (kidneys and livers; seafoods such as mussels, oysters, and crabs; and some grains). Maternal cadmium exposure can cause abnormal embryonic development by interfering with normal zinc ion metabolic activities.

cad·mi·um (Cd),

(kad'mē-ŭm),
A metallic element, atomic no. 48, atomic wt. 112.411; its salts are poisonous and little used in medicine but are frequently used in the basic sciences. Various compounds of cadmium are used commercially in metallurgy, photography, and electrochemistry; a few have been used as ascaricides, antiseptics, and fungicides.
[L. cadmia, fr. G. kadmeia or kadmia, an ore of zinc, calamine]

cadmium

A toxic divalent metallic element (atomic number 48, atomic weight 112.411), which is ubiquitous in nature and central to many industrial processes. Most cadmium is used for rechargeable batteries; it is also used in electroplating, nuclear fission, TV tubes, photocopier drums and paint pigments (yellow and red). It has no known physiologic role in higher animals.

Ref range
0–5.0 µg/L.
 
Toxic range
> 100 µg/L.

cad·mi·um

(Cd) (kad'mē-ŭm)
A metallicelement, atomic no. 48, atomic wt. 112.411; its salts are poisonous and little used in medicine. Various compounds of cadmium are used commercially in fields such as metallurgy, photography, and electrochemistry; a few have been used as ascaricides, antiseptics, and fungicides.
[L. cadmia, fr. G. kadmeia or kadmia, an ore of zinc, calamine]

cadmium

A poisonous metal sometimes encountered as an air pollutant in industrial processes. Inhaled cadmium dust can cause lung inflammation. Cadmium is also damaging to the kidneys and can cause softening of the bones (OSTEOMALACIA).

cad·mi·um

(kad'mē-ŭm)
Metallic element; its salts are poisonous and little used in medicine but are frequently employed in the basic sciences.
[L. cadmia, fr. G. kadmeia or kadmia, an ore of zinc, calamine]
References in periodicals archive ?
of Quantum Chemical Corp., Cincinnati, which successfully has removed cadmium pigments from its concentrates.
Those who are not convinced of cadmium's alleged evils argue that the possibility of cadmium-containing plastic leaching contaminants into groundwater may also apply to organics.
Possible substitutes for cadmium in pigments include not only organic compounds but inorganics such as iron oxide and nickel-antimony titanates.
In some cases, organic pigments are believed to adversely affect the cooling characteristics of resins in a mold-providing poorer heat-transfer than cadmium, resulting in warpage and shrinkage.
Where a cadmium pigment might cost about 10/lb, an organic substitute for that pigment could range from $16-$30/lb.
"In many cases you can replace cadmium with an organic and it will cost more," says Joseph Cameron, Color Technical Support Manager for GE Plastics'total Quality Technology Center, Washington, W.Va.
Because of doubts about what they may be getting into as well as the price factor, many processors are reluctant to switch and are opting to stick with cadmium colorants.
Yet Luke contends the bill could place cadmium pigments beyond the reach of most artists even if it did contain an artists' exemption.
Congress is not the only federal branch furrowing its brow over cadmium. Last February, for instance, the Occupational Safety and Health Administration published a 95-page report summarizing the history of cadmium regulation, studies of health problems linked to the heavy metal, and risk calculations for cancer, kidney damage and other disorders.
"The trouble with a lot of regulations is that they'll take a substance -- say, cadmium -- and treat all forms of its the same," argues J.
Other environmenalists contend that granting an exemption to artists would encourage more cadmium users to press for their own exemptions, ultimately resulting in ineffective regulation of cadmium-containing waste.
Cadmium atoms, when bound to sulfur and selenium, serve as a fount of color and aesthetic possibility.