I-Selenium
Imininingwane Yomkhiqizo
Imininingwane enikeziwe
Impushana emnyama
Okuqukethwe ≥ 99%
(Ububanzi bereferensi yesicelo 'ukusetshenziswa komkhiqizo')
I-Selenium inama-allomorphs amane: i-selenium eyi-hexagonal metallic empunga, eluhlaza okwesibhakabhaka kancane, nokuminyana okuhlobene okungu-4.81g/cm³ (20℃ no-405.2kPa), indawo yokuncibilika engu-220.5℃, indawo yokubilisa engu-685℃, engancibiliki emanzini, ikhabhoni disulfide ne-ethanofide , encibilika ku-sulfuric acid ne-chloroform;I-crystal monoclinic selenium ebomvu, ukuminyana okuhlobene ngu-4.39g/cm³, indawo encibilikayo 221℃, indawo yokubilisa engu-685℃, ayincibiliki emanzini, i-ethanol, inyibilika kancane ku-ether, inyibilika ku-sulfuric acid ne-nitric acid;Ukuminyana okuhlobene kwe-selenium amorphous ebomvu ngu-4.26g/cm³, kanti ukuminyana okuhlobene kwe-selenium eyingilazi emnyama ngu-4.28g/cm³.Iguqulwa ibe i-selenium ene-hexagonal ku-180 ℃, futhi indawo yokubilisa ingu-685 ℃.Ayincibiliki emanzini futhi incibilika kancane ku-carbon disulfide.
I-EVERBRIGHT® 'izophinda ihlinzeke ngendlela oyifisayo :okuqukethwe/ubumhlophe/usayizi wezinhlayiya/PHvalue/umbala/isitayela sokupakisha/ ukucaciswa kwephakheji neminye imikhiqizo eqondene nezimo zakho zokusebenzisa, futhi ikunikeze amasampula amahhala.
Ipharamitha Yomkhiqizo
7782-49-2
231-957-4
78.96
Into engeyona eyensimbi
4.81 g/cm³
Ayincibiliki emanzini
685℃
220.5°C
Ukusetshenziswa komkhiqizo
Ukusetshenziswa kwezimboni
I-Selenium inezinto zombili ze-photoelectric kanye ne-photosensitive.Ukusebenza kwe-Photoelectric kungaguqula ukukhanya kube ugesi ngokuqondile, futhi ukusebenza kwe-photosensitive kunganciphisa ukumelana lapho kwandisa ukukhanya.Izakhiwo ze-photoelectric kanye ne-photosensitive ze-selenium zingasetshenziswa ekukhiqizeni ama-photocell kanye namamitha okuchayeka amakhamera namaseli elanga.I-Selenium ingakwazi ukuguqula i-alternating current ibe eyamanje eqondile, ngakho-ke isetshenziswa kabanzi ekwenzeni izihlungi.I-Selenium elemental iyi-semiconductor yohlobo lwe-P engasetshenziswa kumasekhethi kanye nezingxenye zesimo esiqinile.Ekwenzeni amakhophi, i-selenium ingasetshenziswa ukukopisha imibhalo nezinhlamvu (ama-toner cartridges).Embonini yengilazi, i-selenium ingasetshenziswa ukukhiqiza ingilazi engashintshiwe, ingilazi enombala we-ruby kanye noqweqwe lwawo.
Ibanga le-Medical
Khulisa ukuzivikela komzimba
I-selenium esebenzayo yezitshalo ingasusa ama-radicals mahhala emzimbeni, isuse ubuthi emzimbeni, i-antioxidant, ingavimbela ngokuphumelelayo ukukhiqizwa kwe-lipid peroxide, ivimbele amahlule egazi, isuse i-cholesterol, futhi ithuthukise ukusebenza komzimba womuntu.
Vimbela isifo sikashukela
I-Selenium iyisakhi esisebenzayo se-glutathione peroxidase, engavimbela ukubhujiswa kwe-oxidative yamaseli e-islet beta, iwenze asebenze ngendlela evamile, ikhuthaze i-metabolism kashukela, inciphise ushukela wegazi kanye noshukela womchamo, futhi ithuthukise izimpawu zeziguli ezinesifo sikashukela.
Vimbela i-cataract
I-retina isengcupheni yokulimala ngenxa yokuchayeka kakhudlwana emisebeni ye-computer, i-selenium ingavikela i-retina, ithuthukise isiphetho somzimba we-vitreous, ithuthukise amehlo, futhi ivimbele ulwelwesi lwamehlo.
