Discountable price Nano Zirconium Oxide Powder - Selenium Se powder – Xinglu
Discountable price Nano Zirconium Oxide Powder - Selenium Se powder – Xinglu Detail:

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.
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