YSilica vs Quartz
Silicon yog lub caij nrog atomic tooj 14, thiab nws kuj yog nyob rau hauv pawg 14 ntawm lub sij hawm hauv qab cov pa roj carbon. Nws yog qhia los ntawm lub cim Si. Nws txoj kev teeb tsa hluav taws xob yog 1s2 2s2 2p6 3s23p2 Silicon tuaj yeem tshem plaub lub tshuab hluav taws xob thiab tsim ib qho +4 them cation, lossis nws tuaj yeem faib cov electrons los ua plaub daim ntawv cog lus.. Nws tshwm sim tsis tshua muaj raws li ntshiab silicon nyob rau hauv qhov xwm txheej. Feem ntau, nws tshwm sim raws li oxide los yog silicate. Silica yog oxide daim ntawv ntawm silicon.
Silica
Silicon muaj nyob raws li nws cov oxide nyob rau hauv qhov. Silica yog cov silicon oxide ntau tshaj plaws, nrog rau cov mis molecular SiO2 (silicon dioxide). Silica yog ib qho ntxhia nplua nuj nyob rau hauv lub ntiaj teb crust, thiab nws yog nyob rau hauv xuab zeb, quartz thiab ntau lwm yam minerals. Qee cov zaub mov muaj silica ntshiab tab sis, qee qhov, silica yog tov nrog lwm cov ntsiab lus. Hauv Silica, cov sulfur thiab oxygen atoms koom nrog covalent bonds los tsim cov qauv siv lead ua loj. Txhua tus sulfur atom yog ib puag ncig los ntawm plaub oxygen atoms (tetrahedrally). Silica tsis ua hluav taws xob vim tias tsis muaj hluav taws xob delocalized. Tsis tas li ntawd, nws yog heev thermo stabilized. Silica muaj cov ntsiab lus melting siab heev, vim tias muaj ntau cov sulfur-oxygen bonds yuav tsum tau tawg kom yaj nws. Thaum nws tau txais qhov kub thiab txias heev ntawm ib tus nqi, cov silica melted yuav solidify rau iav. Silica tsis hnov mob nrog cov kua qaub tshwj tsis yog hydrogen fluoride. Tsis tas li ntawd, nws tsis yog soluble hauv dej lossis cov organic hnyav. Silicon yog ua lag luam npaj los ntawm kev siv silica nyob rau hauv ib qho hluav taws xob arc rauv.
Tsis yog silica nkaus xwb nyob rau hauv lub ntiaj teb crust, tab sis nws kuj tseem muaj nyob rau hauv peb lub cev ntau npaum li cas. Silica yog tsim nyog rau kev noj qab haus huv ntawm cov pob txha, pob txha mos, rau tes, tendons, hniav, tawv nqaij, hlab ntsha, thiab lwm yam. Nws yog ib txwm muaj nyob rau hauv dej, zaub ntug hauv paus, qhob cij, cornflakes, dawb mov, txiv tsawb, raisin, thiab lwm yam. dav siv hauv ceramic, iav thiab cement industries.
Quartz
Quartz yog cov ntxhia uas muaj silicon dioxide (SiO2) feem ntau. Quartz muaj cov qauv crystalline tshwj xeeb nrog helix chains ntawm silicon tetrahedrons. Qhov no yog qhov thib ob ntau tshaj ntxhia nyob rau hauv lub ntiaj teb nto thiab muaj ib tug dav faib. Quartz yog ib feem ntawm tag nrho peb hom metamorphic, igneous thiab sedimentary pob zeb. Quartz tuaj yeem sib txawv ntawm ib qho chaw mus rau lwm qhov los ntawm lawv cov xim, pob tshab, qhov ntau ntawm silicon dioxide, qhov loj me, cov khoom siv, thiab lwm yam. Lawv tuaj yeem muaj xim tsis muaj xim, liab, liab, dub, xiav, txiv kab ntxwv, xim av, daj, thiab xim liab. Qee cov quartz pob zeb tuaj yeem ua pob tshab, hos qee qhov tuaj yeem ua tau. Citrine, amethyst, milky quartz, pob zeb siv lead ua, sawv quartz, smoky quartz thiab prasiolite yog qee qhov loj siv lead ua quartz hom. Quartz feem ntau pom muaj nyob hauv Brazil, Mexico, Russia, thiab lwm yam. Muaj qhov sib txawv morphological tseem ceeb hauv cov khoom siv quartz sib txawv; yog li ntawd, lawv tau siv los ua pob zeb ornamental. Nws yog suav hais tias yog ib lub pob zeb semiprecious thiab siv nyob rau hauv jewellery ua. Ntxiv mus, quartz yog siv rau ceramics thiab cements vim nws cov thermal thiab tshuaj stability.
Dab tsi yog qhov txawv ntawm Silica thiab Quartz?
• Silicon dioxide hu ua silica thiab silica muaj nyob rau hauv quartz.
• Muaj peev xwm muaj lwm yam impurities suav nrog hauv quartz, tab sis nws muaj feem pua ntawm silica. Silica tsuas yog muaj silicon dioxide xwb.
