Amorphous uhie ntụ ntụ, na-aghọ oji na guzo na crystalline na kpo oku;Enwere ike ịkwadebe ụdị vitreous na colloidal.
Ụdị amorphous na-adị nro na 40 Celsius ma gbazee na 217 Celsius.Ọ na-adịkarịghị adị na steeti elementrị ya na okike, ma ọ bụ dị ka ogige ore dị ọcha.
Akara: | Se |
CAS | 7782-49-2 |
Nọmba atọm: | 34 |
Ibu Atọmk: | 78.96 |
Njupụta: | 4.79 gm/cc |
Ebe mgbaze: | 217 oC |
Ebe esi mmiri: | 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 |
1 Nrụpụta: selenium (I) chlorid, selenium dichloride, selenides, mercury selenide.
2 Sayensị ụlọ ọrụ teknụzụ dị elu: lead selenide, zinc selenide, ọla kọpa indium gallium diselenide.
3 Electric: semiconductors, electropositive ọla, Tetraselenium tetranitride.
4 Chemistry: Selenols, selenium isotope, Plastics, ikpughe foto.
Ngwa ụlọ ọrụ 5: Igwe enyo enyo, drum selenium, foto electrostatic, ngwa anya.
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Dị, anyị nwere ike inye obere free samples maka àgwà nwale nzube!
1kg kwa akpa fpr samples, 25kg ma ọ bụ 50kg kwa drum, ma ọ bụ dị ka ị chọrọ.
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