2) Enwere ike ịbanye nkwekọrịta nzuzo
3) nkwa nkwụghachi ụbọchị asaa
Ihe dị mkpa: anyị nwere ike ịnye ọ bụghị naanị ngwaahịa, mana ọrụ ngwọta teknụzụ!
1. Aha ngwaahịa:Selenium Se
2. Usoro: Se
3. Ịdị ọcha: 99.9% - 99.9999%
4. Cas No: 7782-49-2
5. Ọdịdị: ntụ ntụ ma ọ bụ granules
6. Akụkụ akụkụ: 200 mesh, 2-5mm, wdg
7. Brand: Epoch-Chem
Akara: | Se |
CAS | 7782-49-2 |
Nọmba atọm: | 34 |
Ibu Atọmk: | 78.96 |
Njupụta: | 4.79 gm/cc |
Ebe mgbaze: | 217 oC |
Ebe esi esi: | 684,9 oC |
Nrụpụta okpomọkụ: | 0.00519 W/cm/K @ 298.2 K |
Mgbochi ọkụ eletrik: | 106 microhm-cm @ 0 oC |
Electronegativity: | 2.4 Paulings |
Okpomọkụ akọwapụtara: | 0.767 Cal/g/K @ 25 oC |
Okpomọkụ nke vaporization: | 3.34 K-cal/gm atọm na 684.9 oC |
Okpomọkụ nke Fusion: | 1.22 Cal / gm mole |
Ụdị | Epoch-Chem |