price for tellurium powder Te 99.99%

Short Description:

Product Description 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...


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Product Description

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:

4.36×10(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

Te %

99.99 min

Al

5

Cu

10

Fe

5

Pb

15

Bl

5

Na

20

Si

5

S

10

Se

15

As

5

Mg

5

Total content of impurity

100max


Certificate

5

What we can provide

34


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