Product Name | CAS | Purity | Specification |
High Purity Tellurium (Te) | 13494-80-9 | 5N-7N | Irregular lump 1-20mm |
Tellurium Powder (Te) | 13494-80-9 | 4N-5N | 100-325 mesh |
Tellurium Shot (Te) | 13494-80-9 | 4N-6N | 0.5-5mm |
Tellurium Dioxide (TeO2) | 7446-07-3;11099-09-5 | 4N-5N | white powder |
Distilled Tellurium | 13494-80-9 | 5n | lump |
Cadmium Telluride (CdTe) | 1306-25-8 | 4N | Black powder mesh 100 |
1. MATERIAL OVERVIEW
Characteristics: | Silvery white, lustrous, solid metal. 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. |
Applications: | Tellurium could be used in different fields, according to its purity. It could be used as infrared detector materials, solar cell material, cooling material and so on. Mainly applied for compound semi-conductor, solar energy cell, electrothermic transition element, cooling element,air-sensitive,thermosensitive,pressure-sensitive,photosensitive,piezo-electric crystal and nuclear radiation detect, infrared detector and basic material. |
2. GENERAL PROPERTIES
Symbol: | Te |
CAS: | 13494-80-9 |
Atomic Number: | 52 |
Atomic Weight: | 127.60 |
Density: | 6.24 gm/cc |
Melting Point: | 449.5 ℃ |
Boiling Point: | 989.8 ℃ |
Thermal Conductivity: | - |
Electrical Resistivity: | 4.36x10(5) microhm-cm @ 25 ℃ |
Electronegativity: | 2.1 Paulings |
Specific Heat: | 0.0481 Cal/g/oK @ 25℃ |
Heat of Vaporization: | 11.9 K-Cal/gm atom at 989.8 ℃ |
Heat of Fusion: | 3.23 Cal/gm mole |
3. Specification
Impurities in ppm
Te % | 99.999 min |
Cu | 0.5 max |
Ag | 0.2 max |
Mg | 0.2 max |
Sb | / |
Ni | 0.5 max |
Zn | 0.5 max |
Bi | 0.5 max |
Mn | 0.2 max |
Ca | 1.0 max |
Fe | 1.2 max |
Cd | 0.5 max |
Cr | 0.1 max |
As | / |
Si | 1.0 max |
Al | 0.5 max |
Se | 2.0 max |
Pb | 0.5 max |
Sn | 0.2 max |
Na | 0.5 max |
