|
CADMIUM
(Cd)
MATERIAL
OVERVIEW
Characteristics:
Soft, blue-white, malleable metal or grayish-white
powder. Tarnishes in moist air; corrosion resistance
poor in industrial atmospheres. Becomes brittle at 80 oC.
Resistant to alkalies; high neutron absorber.
Refractive index 1.13; Mohs hardness 2.0. Soluble in
acids, especially nitric, and in ammonium nitrate
solutions. Lowers melting point of certain alloys when
used in low percentage. Combustible.
Derivation:
(1) Dust or fume from roasting zinc ore is collected,
mixed with coal or coke and NaCl or ZnCl and sintered;
the cadmium volatilized is collected in an
electrostatic precipitator, leached, fractionally
precipitated, and distilled. (2) By direct distill at
ion from cadmium bearing zinc. (3) By recovery from
electrolytic zinc process (about 40%).
Hazard:
Highly toxic, especially by inhalation of dust or
fume. A known carcinogen (OSHA).
Cadmium plating of food and beverage containers
has resulted in a number of outbreaks of
gastroenteritis (food poisoning). Flammable in powder
form. Tolerance (dust and soluble compounds), 0.05
mg/m3
of
air; (oxide fume, as Cd), 0.05 mg/m3
of
air. Soluble compounds of cadmium are highly toxic;
however, ingestion usually induces a strong emetic
action which minimizes the risk of fatal or severe
poisoning. Use as fungicide may be restricted.
GENERAL
PROPERTIES
|
Symbol:
|
Cd
|
|
Atomic
Number:
|
48
|
|
Atomic
Weight:
|
112.41
|
|
Density:
|
8.65
gm/cc
|
|
Melting
Point:
|
320.9
oC
|
|
Boiling
Point:
|
765
oC
|
|
Thermal
Conductivity:
|
0.969
W/cm/oK
@ 298.2 oK
|
|
Electrical
Resistivity:
|
6.83
microhm-cm @ 0 oC
|
|
Electronegativity:
|
1.7
Paulings
|
|
Specific
Heat:
|
0.0555
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
|
23.9
K-Cal/gm at om at 765 oC
|
|
Heat
of Fusion:
|
1.46
Cal/gm mole
|
TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
|
5N
|
6N
|
|
Cu
|
<0.1
|
-
|
|
Fe
|
0.1
|
-
|
|
Pb
|
2.0
|
0.1
|
|
Mg
|
3.0
|
0.1
|
|
Al
|
0.2
|
-
|
|
Si
|
0.2
|
0.2
|
|
Ag
|
<0.1
|
0.1
|
|
Ti
|
0.2
|
-
|
|
Bi
|
3.0
|
0.2
|
|
Ca
|
0.1
|
-
|
CADMIUM
WIRE
|
Material
|
Purity
|
|
Cadmium
Wire .010” to .090”
|
3N,
4N, 5N
|
Wire
diameters are available in increments of .001”.
Wire is spooled to order and sold by the foot or
meter.
CADMIUM
ROD
|
Material
|
Purity
|
|
Cadmium
Rod .0625”
|
3N,
4N, 5N
|
|
Cadmium
Rod .125”
|
3N,
4N, 5N
|
|
Cadmium
Rod .250”
|
3N,
4N, 5N
|
|
Cadmium
Rod .500”
|
3N,
4N, 5N
|
|
Cadmium
Rod .625”
|
3N,
4N, 5N
|
Additional
diameters can be drawn in 2-3 days.
Rod is cut to order and sold by the inch or foot.
CADMIUM
FOIL
|
Material
|
Purity
|
|
Cadmium
Foil .001”
|
3N,
4N, 5N
|
|
Cadmium
Foil .002”
|
3N,
4N, 5N
|
|
Cadmium
Foil .003”
|
3N,
4N, 5N
|
|
Cadmium
Foil .004”
|
3N,
4N, 5N
|
|
Cadmium
Foil .005”
|
3N,
4N, 5N
|
|
Cadmium
Foil .006”
|
3N,
4N, 5N
|
|
Cadmium
Foil .007”
|
3N,
4N, 5N
|
|
Cadmium
Foil .008”
|
3N,
4N, 5N
|
|
Cadmium
Foil .009”
|
3N,
4N, 5N
|
Foil
is cut to order and sold by the square inch or square
foot.
CADMIUM
SHEET
|
Material
|
Purity
|
|
Cadmium
Sheet .010” to 1.0” 
|
3N,
4N, 5N
|
Sheet
thicknesses are available in increments of .001”.
Sheet is cut to order and sold by the square inch or square foot.
CADMIUM
SPUTTERING TARGETS
|
Material
|
Purity
|
|
Cadmium
Sputtering Target 2"D X .125"T
|
3N,
4N, 5N
|
|
Cadmium
Sputtering Target 2"D X .250"T
|
3N,
4N, 5N
|
|
Cadmium
Sputtering Target 3"D X .125"T
|
3N,
4N, 5N
|
|
Cadmium
Sputtering Target 3"D X .250"T
|
3N,
4N, 5N
|
|
Cadmium
Sputtering Target 4"D X .125"T
|
3N,
4N, 5N
|
|
Cadmium
Sputtering Target 4"D X .250"T
|
3N,
4N, 5N
|
Additional
sizes and sputtering targets produced from compounds
are available
upon request.
CADMIUM
POWDER, SHOT, PELLETS, & INGOT
|
Material
|
Purity
|
|
Cadmium
Shot .125"
|
3N,
4N, 5N, 6N
|
|
Cadmium
Pellets .125"D
X .250"L
|
3N,
4N, 5N, 6N
|
|
Cadmium
Pellets .250"D X .250"L
|
3N,
4N, 5N, 6N
|
|
Cadmium
Ingot
|
3N,
4N, 5N, 6N
|
|
Cadmium
Powder-100 Mesh
|
3N,
4N, 5N, 6N
|
|
Cadmium
Powder-325 Mesh
|
3N,
4N, 5N, 6N
|
Powder,
shot, pellets, and ingots are packaged to order and
sold by the gram or kilogram.
CADMIUM
COMPOUNDS
|
Material
|
Purity
|
|
Cadmium
Antimonide Cd3Sb2
1/4" Pieces by Down
|
5N
|
|
Cadmium
Arsenide Cd3As2
1/4" Pieces by Down
|
2N,
5N
|
|
Cadmium
Carbonate CdCO3
-200 Mesh
|
3N,
4N5
|
|
Cadmium
Chloride CdCl2
-80 Mesh
|
3N
|
|
Cadmium
Fluoride CdF2
1/4" - 1/8" Pieces
|
3N
|
|
Cadmium
Fluoride CdF2
-325 Mesh
|
3N
|
|
Cadmium
Iodide CdI2
-40 Mesh
|
2N5
|
|
Cadmium
Molybdate CdMoO4
-200 Mesh
|
3N
|
|
Cadmium
Oxide CdO -200 Mesh
|
3N
|
|
Cadmium
Phosphide CdP2
-100 Mesh
|
3N
|
|
Cadmium
Phosphide Cd3P2
-100 Mesh
|
2N5
|
|
Cadmium
Selenide CdSe 1/2" - 1/8" Pieces
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