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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Using a complete scientific high quality management program, superior high quality and superior faith, we acquire great reputation and occupied this industry for High reputation Nano Cerium Oxide Power - Selenium Se powder – Xinglu, The product will supply to all over the world, such as: Greenland , Azerbaijan , French , Our staffs are adhering to the "Integrity-based and Interactive Development" spirit, and the tenet of "First-class Quality with Excellent Service". According to the needs of every customer, we provide customized & personalized services to help customers achieve their goals successfully. Welcome clients from home and abroad to call and inquire!
By Adelaide
from Tajikistan
- 2017.01.28 18:53
Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
By Quyen Staten
from Cape Town
- 2017.10.23 10:29
