2) Chibvumirano chezvakavanzika chinogona kusaina
3) Mazuva manomwe ekudzorera vimbiso
Zvinotonyanya kukosha: isu hatigone kupa kwete chigadzirwa chete, asi tekinoroji mhinduro sevhisi!
1. Zita rechigadzirwa:Selenium Se
2. Formula: Se
3. Kuchena: 99.9% - 99.9999%
4. Cas Nha: 7782-49-2
5. Kuonekwa: poda kana granules
6. Particle size: 200 mesh, 2-5mm, nezvimwewo
7. Mucherechedzo: Epoch-Chem
Chiratidzo: | 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 |
Chaicho Kupisa: | 0.767 Cal/g/K @ 25 oC |
Kupisa kweVaporization: | 3.34 K-cal/gm atomu pa684.9 oC |
Kupisa kweFusion: | 1.22 Cal/gm mole |
Brand | Epoch-Chem |