Amorphous pupa lulú, di dudu lori iduro ati kirisita lori alapapo; vitreous ati colloidal fọọmu le wa ni pese sile.
Fọọmu amorphous rọ ni 40 °C ati yo ni 217 °C. O ṣọwọn waye ni ipo ipilẹ rẹ ni iseda, tabi bi awọn agbo ogun irin funfun.
| 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 |
1 iṣelọpọ: selenium(I) kiloraidi, Selenium dichloride, Selenides, mercury selenide.
2 Imọ-ẹrọ giga ile-iṣẹ: asiwaju selenide, zinc selenide, Ejò indium gallium diselenide.
3 Itanna: semikondokito, awọn irin elekitirosi, Tetraselenium tetranitride.
4 Kemistri: Selenols, selenium isotope, Ṣiṣu, ifihan aworan.
Ohun elo ile-iṣẹ 5: Ṣiṣe gilasi, ilu selenium, aworan elekitiroti, ohun elo opitika.
Iṣẹ ti a le pese
1) Lodo guide le ti wa ni wole
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!
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