碲（Te） Tellurium (唐先生，15216876228，QQ：964957184)
1，物理性质：
原子量：127.60
电负性：2.01
密度：6.25 g/cm3
熔点：452 ℃
沸点：1390 ℃
价态：-2，+2，+4，+6
禁带宽度：0.35 eV
电子迁移率：1700 cm3/(v.s)
2，规格：
化学纯度：
高纯碲：Te-04 纯度99.99%以上，银，铝，镉，铜，铁，镁，镍，铅，硒，锡杂质总含量小于100ppm；
高纯碲：Te-05 纯度99.999%以上，银，铝，镉，铜，铁，镁，镍，铅，硒，锡杂质总含量小于10ppm；
超纯碲：Te-06 纯度99.9999%以上，银，铝，镉，铜，铁，镁，镍，铅，硒，锌杂质总含量小于1ppm；
超高纯碲：Te-07 纯度99.99999%以上，银，铝，镉，铜，铁，镁，镍，铅，锌杂质总含量小于0.1ppm。
3，物理性状：块，锭，粉。
4，用途：
主要用于制备Ⅱ-Ⅵ族化合物半导体，太阳能电池，热电转换元件，致冷元件，气敏，热敏，压敏，光敏，压电晶体和核辐射探测，红外探测器等基础材料。
5，包装：涤纶薄膜包装后塑料薄膜真空封装或玻璃管真空封装。
Tellurium (Te)
Physical character:
Atomic Weight: 127.60
Electronegative: 2.01
Density: ρ=6.25 g/cm3
Melting Point: mp:452 ℃
Boiling Point: bp:1390 ℃
Bandwidth: 0.35 eV
Specification:
High Purity Tellurium:
Te-04 Grade 99.99. The content of Tellurium is above 99.99%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Sn is bellow 100 ppm;
Te-05 Grade 99.999. The content of Tellurium is above 99.999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Sn is bellow 10 ppm;
Uitra Purity Tellurium:
Te-06 Grade 99.9999. The content of Tellurium is above 99.9999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Zn is bellow 1 ppm;
Uitra High Purity Tellurium:
Te-07 Grade 99.99999. The content of Tellurium is above 99.99999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb & Zn is bellow 0.1 ppm.
Physical Size:
Lump, Ingot, Powder.
Usage:
It is mainly used in the manufacture of II-VI compound semiconductor, thermoelectric converting element, refrigerating element, piezocrystal and infrared detector etc.
Packing:
It is packed with dacron film, then covered with a sealed plastic film bag or vacuum sealed in a glass ampule.
