ʻO ka hale kūʻaiʻo Selenium Powder / Pellets / Beads / se granules me ke kumukūʻai maikaʻi loa

ʻO ka hale kūʻaiʻo Selenium Powder / Pellets / Beads / se granules me nā kiʻi maikaʻi loa i kiʻiʻia

Kākau pōkole:

Kūlana huahana: selenium se

Formula: Se

ʻO ka hoʻomaʻemaʻe: 99.9% - 99.9999%

Nā Palapala No: 7782-49-2

Hōʻike: Powder a iʻole Granules

Kahi'āpana: 200 Mesh, 2-5mm, Etc

Kūlana: Epoch-Chem

Hoʻouna i ka leka uila iā mākou

Huahana kikoʻipiop

Nā Kūlana Huakaʻi

ʻO ka wehewehe piha

ʻO Amorpros Foowder, e lilo iʻeleʻele ma ke kūʻana a me ke kākāʻana ma keʻano; E hoʻomākaukauʻia nāʻano Vitreous a me ke kolamu.

ʻO Amorpous Forftens i 40 ° C a me Melts ma 217 ° C. Hikiʻole ke loaʻa i kona kūlana maʻamau ma keʻano, a iʻole e like me nā mea hoʻohui o nā meaʻala.

Kaoaohai

KOMOHANA:	Se
Kālā	7782-49-2
Helu helu:	34
Kaupaona atomi:	78.96
Kaumaha:	4.79 gm / cc
Melting point:	217 OC
Ka umauma:	684.9 OC
Ka Ho'ōla O ke Kani:	0.,00519 w / cm / k @ @ _8.2 K
ʻO ke kumu o ka uila:	106 microhm-cm @ 0 oc
ʻO ke electronegativity:	2.4ʻO nā poina
ʻO ka wela kūikawā:	0.767 cal / g / k @ 25 oc
ʻO ka wela o ka vaporization:	3.34 K-Cal / Gm Atom ma 684.9 oC
ʻO ka wela o ka wela:	1.22 cal / gm mole
Haole	Epoch-chem