High reputation Nano Cerium Oxide Power - Selenium Se powder – Xinglu
High reputation Nano Cerium Oxide Power - 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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We're commitment to offer you the aggressive cost ,superb products and solutions top quality, too as fast delivery for High reputation Nano Cerium Oxide Power - Selenium Se powder – Xinglu, The product will supply to all over the world, such as: Mexico, Egypt, Macedonia, Faced with the vitality of the global wave of economic integration, we are confident with our high-quality products and sincerely service to all our customers and wish we can cooperate with you to create a brilliant future.
By Jean from Lithuania - 2018.10.31 10:02
Perfect services, quality products and competitive prices, we have work many times, every time is delighted, wish continue to maintain!
By Abigail from Slovakia - 2017.06.29 18:55
