Selenium
Cikakken Bayani
An bayar da ƙayyadaddun bayanai
Bakar foda
Abun ciki ≥ 99%
(Isalin bayanin aikace-aikacen 'amfani da samfur')
Selenium yana da allomorphs guda huɗu: selenium hexagonal ƙarfe mai launin toka, ɗan ƙaramin shuɗi, tare da ƙarancin dangi na 4.81g / cm³ (20 ℃ da 405.2kPa), wurin narkewa na 220.5 ℃, wurin tafasa na 685 ℃, wanda ba a iya narkewa cikin ruwa, carbon disulfide da ethanol. , mai narkewa a cikin sulfuric acid da chloroform;Red monoclinic crystal selenium, dangi yawa ne 4.39g/cm³, narkewa batu 221 ℃, tafasar batu 685 ℃, insoluble a cikin ruwa, ethanol, dan kadan mai narkewa a cikin ether, mai narkewa a cikin sulfuric acid da nitric acid;Matsakaicin danniya na selenium amorphous ja shine 4.26g/cm³, kuma girman dangi na selenium gilashin baƙar fata shine 4.28g/cm³.An canza shi zuwa selenium hexagonal a 180 ℃, kuma tafasar batu shine 685 ℃.Ba shi da narkewa a cikin ruwa kuma yana ɗan narkewa a cikin carbon disulfide.
EVERBRIGHT®'ll kuma samar da musamman: abun ciki / fari / barbashi / PHvalue / launi / packagingstyle / marufi bayani dalla-dalla da sauran takamaiman kayayyakin da suka fi dace da your amfani yanayi, da kuma samar da free samfurori.
Sigar Samfura
7782-49-2
231-957-4
78.96
Abun da ba na ƙarfe ba
4.81g/cm³
Mara narkewa a cikin ruwa
685℃
220.5°C
Amfanin Samfur
Amfani da masana'antu
Selenium yana da nau'ikan hasken wuta da hasken haske.Ayyukan hoto na iya canza haske kai tsaye zuwa wutar lantarki, kuma aikin mai ɗaukar hoto zai iya rage juriya lokacin ƙara haske.Ana iya amfani da kayan aikin hoto da hotuna masu ɗaukar hoto na selenium a cikin samar da photocells da mita masu ɗaukar hoto don kyamarori da ƙwayoyin rana.Selenium na iya canza canjin halin yanzu zuwa na yanzu kai tsaye, don haka ana amfani da shi sosai wajen kera na'urori masu gyara.Selenium elemental semiconductor na nau'in P ne wanda za'a iya amfani dashi a cikin da'irori da abubuwan da suka dace.A cikin kwafin hoto, ana iya amfani da selenium don kwafin takardu da haruffa (kwayoyin toner).A cikin masana'antar gilashi, ana iya amfani da selenium don samar da gilashin da aka lalata, gilashin launi na ruby da enamel.
Matsayin likita
Haɓaka rigakafi
Selenium mai aiki na shuka zai iya share radicals kyauta a cikin jiki, kawar da gubobi a cikin jiki, antioxidant, zai iya hana samar da lipid peroxide yadda ya kamata, hana ƙumburi na jini, cire cholesterol, da haɓaka aikin rigakafi na ɗan adam.
Hana ciwon sukari
Selenium shine sashin aiki na glutathione peroxidase, wanda zai iya hana lalatawar oxidative na ƙwayoyin beta na tsibiri, ya sa su yi aiki akai-akai, haɓaka metabolism na sukari, rage sukarin jini da sukarin fitsari, da haɓaka alamun masu ciwon sukari.
Hana cataract
Kwayar ido tana da rauni ga lalacewa saboda ƙarin kamuwa da radiation na kwamfuta, selenium na iya kare retina, haɓaka ƙarewar jiki mai ƙarfi, inganta gani, da hana cataracts.
