Qhov txawv ntawm silica thiab silicon dioxide yog tias silica yog lub npe ntawm SiO2 whereas silicon dioxide yog IUPAC lub npe ntawm SiO2. Ntxiv mus, silicon dioxide hais txog daim ntawv purest nkaus xwb thaum silica tuaj yeem yog daim ntawv ntshiab lossis tsis huv.
Ob lo lus "silica" thiab "silicon dioxide" yog hais txog tib yam tshuaj lom neeg, tab sis lawv txawv ntawm kev siv cov ntsiab lus no. Lub sij hawm silica yog ib lub npe nrov, thiab peb siv nws feem ntau hauv kev lag luam tshuaj thaum lub sij hawm silicone dioxide yog lub npe tshuaj ntawm tib lub ntsiab lus uas peb siv, feem ntau hauv chemistry.
Silica yog dab tsi?
Silica yog ib lub npe ntawm SiO2 Qhov no yog ib qho tseem ceeb ntawm lub ntiaj teb crust; lub ntiaj teb crust muaj nyob ib ncig ntawm 59% no compound. Qhov sib xyaw no tshwm sim hauv peb daim ntawv tseem ceeb xws li quartz, tridymite thiab cristobalite. Ntxiv mus, silica yog cov ntxhia uas tshwm sim hauv cov xuab zeb, av nplaum thiab granite. Nws kuj tshwm sim hauv ntau yam kab mob nyob ib yam nkaus.
Silicon Dioxide yog dab tsi?
Silicon dioxide yog lub npe IUPAC ntawm SiO2 lo lus no piav qhia tias qhov sib xyaw no yog oxide ntawm silicon. Peb siv lo lus no los hu ua daim ntawv purest ntawm SiO2 Nws tshwm sim hauv quartz thiab ua cov khoom hauv cov kab mob. Qhov hnyav ntawm molar yog 60.08 g / mol. Nws zoo nkaus li cov pob tshab. Lub melting point thiab boiling point yog 1,713 ° C thiab 2, 950 ° C raws.
Daim duab 01: Tus Qauv Silicon Dioxide
Cov molecules silicon dioxide qhia txog tetrahedral geometry. Nyob ntawd, plaub lub atoms nyob ib puag ncig silicon atom. Ntxiv mus, qhov sib xyaw no muaj ntau cov ntaub ntawv crystalline; peb hu lawv polymorphs. Tseem muaj qee cov qauv amorphous. Tsis tas li ntawd, peb tuaj yeem hloov silicon dioxide rau hauv silicon los ntawm kev txo cov tshuaj tiv thaiv nrog carbon.
Muaj ntau yam kev siv silicon dioxide. Peb siv nws rau kev tsim cov Portland cement, rau xuab zeb casting, hauv hydraulic fracturing, ua ib tug precursor los tsim iav, ua optical fibers rau kev sib txuas lus, ua khoom noj additive, thiab lwm yam.
Qhov txawv ntawm Silica thiab Silicon Dioxide yog dab tsi?
Silica yog ib lub npe ntawm SiO2 Peb tuaj yeem siv lo lus no los ua lub npe dawb lossis tsis huv SiO2 Silicon dioxide yog cov IUPAC lub npe ntawm SiO2 Yog li, nws yog lub npe tshuaj ntawm cov tshuaj. Qhov no yog qhov sib txawv tseem ceeb ntawm silica thiab silicaon dioxide. Ntxiv mus, peb siv silicaon dioxide rau npe tsuas yog daim ntawv purest ntawm SiO2 Tsis tas li ntawd, qhov pom qhov txawv ntawm silica thiab silicaon dioxide yog lawv cov xim. Feem ntau, silica muaj xim daj daj vim muaj cov impurities. Txawm li cas los xij, silicaon dioxide yog pob tshab thiab zoo li cov khoom dawb vim nws cov purity siab.
Summary – Silica vs Silicon Dioxide
Ob lo lus silica thiab silicon dioxide npe tib yam tshuaj lom neeg. Txawm li cas los xij, kev siv cov ntsiab lus no txawv ntawm ib leeg raws li qhov chaw uas peb siv. Qhov txawv ntawm silica thiab silicon dioxide yog tias silica yog lub npe ntawm SiO2 whereas silicon dioxide yog lub npe IUPAC uas peb siv los sau npe tsuas yog daim ntawv ntshiab ntawm SiO 2
