Cas 7782-49-2 high purity 99.9%-99.999% Selenium Se powder

Short Description:

1. Product name: Selenium Se powder
2. Cas No: 7782-49-2
3. Purity: 99.9%- 99.999%
4. Particle size: 200 mesh


Product Detail

Product Tags

Product Description
selenium metal powder

1. Features 

Symbol:

Se

CAS

7782-49-2

Atomic Number:

34

Atomic Weight:

78.96

Density:

4.79 gm/cc

Melting Point:

217 oC

Boiling Point:

684.9 oC

Thermal Conductivity:

0.00519 W/cm/K @ 298.2 K

Electrical Resistivity:

106 microhm-cm @ 0 oC

Electronegativity:

2.4 Paulings

Specific Heat:

0.767 Cal/g/K @ 25 oC

Heat of Vaporization:

3.34 K-cal/gm atom at 684.9 oC

Heat of Fusion:

1.22 Cal/gm mole

3. Hazards

Selenium salts are toxic in large amounts, but trace amounts are necessary for cellular function

4. Applications

Selenium is now used in a variety of applications, from glass and metallurgical applications to pigments, agriculture and electronics.


Certificate

5

What we can provide

34


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