|
TELLURIUM
(Te)
GENERAL
PROPERTIES
|
Symbol:
|
Te
|
|
Atomic
Number:
|
52
|
|
Atomic
Weight:
|
127.60
|
|
Density:
|
6.24
gm/cc
|
|
Melting
Point:
|
449.5
oC
|
|
Boiling
Point:
|
989.8
oC
|
|
Thermal
Conductivity:
|
-
|
|
Electrical
Resistivity:
|
4.36x10(5)
microhm-cm @ 25 oC
|
|
Electronegativity:
|
2.1
Paulings
|
|
Specific
Heat:
|
0.0481
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
|
11.9
K-Cal/gm atom at 989.8 oC
|
|
Heat
of Fusion:
|
3.23
Cal/gm mole
|
MATERIAL
OVERVIEW
Characteristics:
Silvery white, lustrous, solid metal characteristics.
Soluble in sulfuric acid, nitric acid, potassium
hydroxide and potassium cyanide solution. Insoluble in
water. Imparts garlic-like odor to breath, can be
depilatory. It is a p-type semiconductor and its
conductivity is sensitive to light exposure.
Hazards:
(Metal and compounds, as Te): Toxic by inhalation.
Tolerance, 0.1 mg/m3
of
air.
TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
|
4N
|
5N
|
|
Cu
|
<2
|
2
|
|
Mg
|
<2
|
<1
|
|
S
|
<10
|
-
|
|
Si
|
<2
|
<1
|
|
Al
|
-
|
<1
|
|
Fe
|
<1
|
1
|
|
Pb
|
<1
|
-
|
|
Se
|
<50
|
<5
|
|
Ni
|
-
|
<1
|
|
Ca
|
-
|
<1
|
ROD
|
Material
|
Purity
|
|
Tellurium
Rod .125”
|
3N,
5N, 6N
|
|
Tellurium
Rod .250”
|
3N,
5N, 6N
|
|
Tellurium
Rod .500”
|
3N,
5N, 6N
|
|
Tellurium
Rod .625”
|
3N,
5N, 6N
|
|
Tellurium
Rod .750”
|
3N,
5N, 6N
|
|
Tellurium
Rod 1”
|
3N,
5N, 6N
|
Rod
is cut to order and sold by the inch or foot.
POWDER, SHOT, PELLETS, & INGOT
|
Material
|
Purity
|
|
Tellurium
Powder -30 Mesh
|
4N
|
|
Tellurium
Powder -60 Mesh
|
5N
|
|
Tellurium
Powder -325 Mesh
|
5N
|
|
Tellurium
Powder -200
|
2N8
|
Powder,
shot, pellets, and ingots are packaged to order and
sold by the gram or kilogram.
COMPOUNDS
|
Material
|
Purity
|
|
Tellurium
Acid H6TeO6
-40
Mesh
|
2N5
|
|
Tellurium
Bromide TeBr4
-4
Mesh
|
3N
|
|
Tellurium
Chloride TeCl4
-8
Mesh
|
3N
|
|
Tellurium
Iodide TeI4
-4
Mesh
|
3N
|
|
Tellurium
Oxide TeO2
-100
Mesh
|
4N,
5N
|
|
Tellurium
Oxide TeO3
-60
Mesh
|
3N
|
Compounds
are packaged to order and sold by the gram or
kilogram.
|
 |
