Crystalline silicon yog hlau grey, amorphous silicon yog dub. Non-toxic, tasteless. D2.33; Melting point 1410 ℃; Qhov nruab nrab kub muaj peev xwm (16 ~ 100 ℃) 0.1774cal / (g - ℃). Crystalline silicon yog ib qho atomic siv lead ua, tawv thiab ci, thiab yog ib yam ntawm semiconductors. Nyob rau hauv chav tsev kub, ntxiv rau hydrogen fluoride, nws yog ib qho nyuaj rau react nrog lwm yam tshuaj, insoluble nyob rau hauv dej, nitric acid thiab hydrochloric acid, soluble nyob rau hauv hydrofluoric acid thiab lye. Nws tuaj yeem ua ke nrog oxygen thiab lwm yam khoom ntawm qhov kub thiab txias. Nws muaj cov yam ntxwv ntawm siab hardness, tsis muaj dej nqus, kub tsis kam, acid tsis kam, hnav tsis kam thiab kev laus ua haujlwm. Silicon yog dav faib nyob rau hauv cov xwm thiab muaj li ntawm 27.6% nyob rau hauv lub ntiaj teb crust. Feem ntau nyob rau hauv daim ntawv ntawm silica thiab silicates.
Silicon hlau nws tus kheej yog tsis muaj tshuaj lom rau tib neeg lub cev, tab sis nyob rau hauv tus txheej txheem ntawm kev ua yuav tsim zoo silicon plua plav, muaj ib tug stimulating nyhuv ntawm lub ntsws. Hnav cov khoom tiv thaiv tsim nyog xws li lub qhov ncauj qhov ntswg, hnab looj tes, thiab kev tiv thaiv qhov muag thaum tuav cov hlau silicon.
Qhov ncauj LDso ntawm nas: 3160mg / kg. High concentration inhalation ua rau mob me me ntawm txoj hlab pa thiab irritants thaum nws nkag mus rau hauv lub qhov muag raws li ib tug txawv teb chaws lub cev. Silicon hmoov reacts hnyav nrog calcium, cesium carbide, chlorine, pob zeb diamond fluoride, fluorine, iodine trifluoride, manganese trifluoride, rubidium carbide, nyiaj fluoride, poov tshuaj sodium alloy. Plua plav yog qhov txaus ntshai heev thaum raug nplaim taws lossis tiv nrog oxidants. Khaws rau hauv qhov chaw txias, qhuav thiab zoo-ventilated warehouse. Khaws kom deb ntawm hluav taws thiab cua sov. Lub pob yuav tsum raug kaw thiab tsis sib cuag nrog huab cua. Yuav tsum tau muab cais los ntawm oxidizers, thiab tsis txhob sib tov.
Tsis tas li ntawd, cov hlau silicon yuav hnov mob nrog cov pa oxygen hauv huab cua los tsim cov pa hluav taws xob, thiab yuav tsum tau saib xyuas kom tsis txhob muaj kev sib cuag nrog hluav taws kub lossis oxidants thaum khaws cia thiab kev thauj mus los.
Post lub sij hawm: Nov-29-2024
