2) Asiri adehun le ti wa ni wole
3) Ẹri agbapada ọjọ meje
Diẹ pataki: a le pese kii ṣe ọja nikan, ṣugbọn iṣẹ ojutu imọ-ẹrọ!
1. Orukọ ọja:Selenium Se
2. Ilana: Se
3. Mimo: 99.9% - 99.9999%
4. Cas No: 7782-49-2
5. Irisi: lulú tabi granules
6. Iwọn patiku: 200 mesh, 2-5mm, bbl
7. Brand: Epoch-Chem
Àmì: | Se |
CAS | 7782-49-2 |
Nọmba Atomiki: | 34 |
Ìwúwo Atomiki: | 78.96 |
Ìwúwo: | 4,79 gm/cc |
Oju Iyọ: | 217 oC |
Oju Ise: | 684,9 oC |
Imudara Ooru: | 0.00519 W/cm/K @ 298.2 K |
Itanna Resisiti: | 106 microhm-cm @ 0 oC |
Electronegativity: | 2.4 Paulings |
Ooru kan pato: | 0.767 Cal/g/K @ 25 oC |
Ooru ti Vaporization: | 3.34 K-cal/gm atomu ni 684.9 oC |
Ooru ti Fusion: | 1,22 Cal / gm mole |
Brand | Epoch-Chem |