USelenium
Imininingwane Yomkhiqizo
Imininingwane enikeziwe
Umnyama powder
Okuqukethwe ≥ 99%
(Ububanzi bereferensi yesicelo 'Ukusetshenziswa Komkhiqizo')
I-selenium inama-allomorph amane: i-hexagory yensimbi ye-hexagonal metallic metallic, eluhlaza okwesibhakabhaka kancane, ngobuningi obuhlobene ka-4.81g / cm³ (20 ℃ kanye ne-405.2kpa), i-aulfuluble acid, insoluble ku-sulfuric acid kanye ne-chloroform; I-Red Monoclinic Crystal Selenium, ukuncipha okuhlobene yi-4.39g / cm³, incibilikisa iphuzu, i-ethanol, incane kancane, insolul in ether, incibilike kancane i-ether ne-nitric acid ne-nitric acid ne-nitric acid; Ubuningi obusondelene be-malephium ebomvu ye-amorphous ngu-4.26g / cm³, kanye nobuningi obuhlobene be-pelenium emnyama ye-balenium ngu-4.28g / cm³. Iguqulwa ibe yi-hexagonal selenium ngo-180 ℃, futhi iphuzu elibilayo lingu-685 ℃. Kuyinto engasebenzi emanzini futhi incibilikisa kancane e-carbon disbefide.
I-EverBright® 'LL futhi ihlinzeka ngezifiso: okuqukethwe / okumhlophe / izinhlayiya / phvalue / ukufakwa kombala / ukufakwa kwemininingwane / ukufakwa kwemikhiqizo ethile efanelekile ngezimo zakho zokusebenzisa, futhi zinikeze amasampula wamahhala.
Ipharamitha yomkhiqizo
7782-49-2
231-957-4
78.96
Into engeyona eyensimbi
4.81 g / cm³
Insoluble emanzini
I-685℃
220.5 ° C
Ukusetshenziswa Komkhiqizo
Ukusetshenziswa Kwezimboni
I-Selenium inezakhiwo zombili ze-photoelectric ne-photosensitive. Ukusebenza kwe-PhotoElectric kungaguqula ukukhanya ngqo kugesi, futhi ukusebenza kwezithombe kunganciphisa ukumelana lapho kukhanya. Izakhiwo ze-photoelectric ne-photosensitive ze-selenium zingasetshenziswa ekukhiqizeni ama-photocell kanye namamitha wokuvezwa kwamakhamera namaseli elanga. I-Selenium ingaguqula ukushintshana kwamanje kube njengamanje, ngakho-ke kusetshenziswa kabanzi ekwakheni ama-rexifiers. I-Selenium Elemental yi-semiconductor ye-p-tex engasetshenziswa kumasekethe kanye nezinto eziqinile zombuso. Ku-Photocoping, i-Selenium ingasetshenziswa ukukopisha amadokhumenti nezinhlamvu zama-cartridges (ama-cartridges we-toner). Embonini yengilazi, i-selenium ingasetshenziswa ukukhiqiza ingilazi ehlotshisiwe, ingilazi enemibala ye-ruby ne-koqweqwe lwawo.
Ibanga le-meidical
Khuphula ukungavikeleki
I-selenium esebenzayo ye-sple ingasusa imisebe yamahhala emzimbeni, yaqede ubuthi emzimbeni, i-antioxidant, ingavimbela ngempumelelo ukukhiqizwa kwe-lipid peroxide, ivikele ama-cholesterol, isuse ukusebenza komzimba womuntu.
Vimbela isifo sikashukela
I-Selenium yingxenye esebenzayo ye-Glutathione Peroxidase, engavimba ukucekelwa phansi kwe-oxidative of I-Ishit Beta cell, iqhubeke isebenze ngokujwayelekile, ukukhuthaza i-metabolism kashukela, futhi unciphise izimpawu zegazi kanye nokwenza ngcono izimpawu zeziguli zesifo sikashukela.
Vimbela i-cataract
I-retina isengozini yokulimala ngenxa yokuvezwa okuningi kwemisebe yekhompyutha, uSelenium angavikela i-retina, athuthukise ukuqeda umzimba we-vitreous, athuthukise amehlo, futhi avimbele ama-cataracts.
