Factory Cheap Fe3o4 Nanoparticles - Selenium Se powder – Xinglu
Factory Cheap Fe3o4 Nanoparticles - 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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The very rich projects management experiences and one to one service model make the high importance of business communication and our easy understanding of your expectations for Factory Cheap Fe3o4 Nanoparticles - Selenium Se powder – Xinglu, The product will supply to all over the world, such as: The Swiss , Portugal , Holland , We expect to provide products and services to more users in global aftermarket markets; we launched our global branding strategy by providing our excellent products all over the world by virtue of our well reputed partners letting global users keep pace with technology innovation and achievements with us.
By Julia
from New Zealand
- 2017.09.09 10:18
This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
By Beryl
from Niger
- 2017.09.29 11:19
