Good Wholesale Vendors Nano Mgco3 Powder - Selenium Se powder – Xinglu
Good Wholesale Vendors Nano Mgco3 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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Sticking towards the theory of "Super Good quality, Satisfactory service" ,We are striving to become a superb business enterprise partner of you for Good Wholesale Vendors Nano Mgco3 Powder - Selenium Se powder – Xinglu, The product will supply to all over the world, such as: Brazil , London , Ottawa , Now we are sincerely consider to grant brand agent in different areas and our agents' maximum margin of profit is the most important thing we care about. Welcome all of the friends and customers to join us. We are ready to share win-win corporation.
By Ivan
from Victoria
- 2018.09.16 11:31
The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
By Pearl
from Montpellier
- 2018.02.21 12:14
