Ubonelelo ngefektri iSelenium powder / Pellets / Beads / Se Granules ngexabiso elifanelekileyo

Ubonelelo ngefektri Selenium umgubo / iiPellets / amaso / Se Granules ngexabiso elingcono Featured Image

Inkcazelo emfutshane:

Igama lemveliso: Selenium Se

Ifomula: Se

Ubunyulu: 99.9% - 99.9999%

Inombolo yeCas: 7782-49-2

Ukubonakala: umgubo okanye iigranules

Ubungakanani be-particle: 200 mesh, 2-5mm, njl

Uphawu: Epoch-Chem

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Ingcaciso yeMveliso

I-amorphous powder ebomvu, ibe mnyama ngokuma kunye nekristale ekufudumeni;iifom ze-vitreous kunye ne-colloidal zinokulungiswa.

Imo ye-amorphous iyathamba kwi-40 °C kwaye inyibilika kwi-217 °C.Ayifane yenzeke kwimo yayo yokuqala kwindalo, okanye njengeekhompawundi ezicocekileyo zentsimbi.

Inkcazo

Uphawu:	Se
CAS	7782-49-2
Inombolo yeAtom:	34
Ubunzima beAtom:	78.96
Ubuninzi:	4.79 gm/cc
Indawo yokunyibilika:	217 oC
Indawo yokuBilisa:	684.9 oC
I-Thermal Conductivity:	0.00519 W/cm/K @ 298.2 K
Ukuxhathisa koMbane:	106 microhm-cm @ 0 oC
I-Electronegativity:	2.4 IiPawuli
Ubushushu obuthile:	0.767 Cal/g/K @ 25 oC
Ubushushu boMphunga:	3.34 K-cal/gm atom kwi-684.9 oC
Ubushushu beFusion:	1.22 Cal/gm imvukuzane
Uphawu	Epoch-Chem