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cadmium [Cd]
From the Latin cadmia, calamine (cadmium carbonate) Discovered in 1817 by German chemist Fredich Stromeyer.
Occurrence:
- obtained largely as a byproduct of smelting of zinc ore
Characteristics:
1) blueish white malleable ductile metallic element
2) soft enough to cut with a knife
3) non-volatile
4) bivalent
5) toxic
a) poisoning rarely occurs because very little can be absorbed
b) linked to renal failure & hypertension
6) Cd-113 has a 1/2life of 9.3 x 10 E15 years
Uses:
1) protective platings
2) bearing metals
3) batteries (esp with nickel)
4) rechargeable Ni-Cd batteries
5) alloys
6) nuclear reactor control rods
7) cadmium compounds
a) cadmium sulfide is a yellow compound used as a pigment
b) other cadmium compounds use used as phosphors in televisions
Laboratory:
- cadmium in specimen
- cadmium in air
- cadmium in water
- cadmium in hair
- cadmium in nail
- cadmium in tissue
- cadmium in erythrocytes
- cadmium in body fluid
- cadmium in CSF
- cadmium in blood
- cadmium in serum/plasma
- cadmium in urine
Related
cadmium toxicity
Cd+2
periodic table
General
chemical element
metal
Properties
SIZE: AW = 51.996
atomic number
VALUE: 48
VALENCE: KR 4D10 5S2
Database Correlations
PUBCHEM correlations
References
- Webster's Ninth New Collegiate Dictionary, Miriam-
Webster Inc. Springfield, MA 1990
- Chemical & Engineering News, Sept 8, 2003