Magnesium vs Magnesium Oxide
Magnesium thiab magnesium oxide muaj nyob rau hauv lub ntiaj teb thiab magnesium oxide yog ib tug compound ntawm magnesium. Magnesium yog ib qho tshwm sim tshwm sim thiab yog yim feem ntau pom muaj nyob rau hauv lub ntiaj teb 'crust. Nws yog sawv cev los ntawm lub cim Mg thiab muaj tus lej atomic ntawm 12. Raws li magnesium ion yog soluble hauv dej, nws yog qhov thib peb feem ntau pom muaj nyob hauv dej hiav txwv. Hauv tib neeg lub cev, nws pom muaj ntau, thiab los ntawm huab hwm coj nws suav txog 2.2% ntawm lub cev hnyav. Magnesium ions yog qhov tseem ceeb rau txhua yam muaj sia vim lawv ua lub luag haujlwm tseem ceeb hauv kev sib txuas thiab ua haujlwm ntawm DNA, RNA thiab ntau cov enzymes. Hauv cov nroj tsuag, MG ion yog nyob rau hauv nruab nrab ntawm chlorophyll, ua rau nws yog ib qho tseem ceeb nyob rau hauv feem ntau ntawm cov chiv. Nws kuj yog siv ntau yam tshuaj nyob rau hauv daim ntawv ntawm magnesium mis nyuj. Magnesium compounds yog siv feem ntau hauv cov tshuaj xws li laxatives thiab antacids.
Magnesium
Txawm hais tias pom muaj nyob hauv lub ntiaj teb, magnesium yog ib yam khoom muaj zog heev thiab feem ntau pom nyob rau hauv daim ntawv ntawm nws cov tebchaw. Thaum magnesium tau muab rho tawm los ntawm cov tebchaw no (tsuas yog oxides) nws hlawv nrog lub teeb dawb ci ntsa iab uas yog vim li cas nws tau siv hauv cov nplaim taws. Magnesium feem ntau tau txais los ntawm electrolysis ntawm nws cov ntsev. Kev siv lub ntsiab ntawm magnesium hlau los ntawm alloying, thiab cov alloys ua los ntawm kev sib xyaw nrog txhuas, hu ua aluminium magnesium alloys lossis magnalium feem ntau siv hauv kev lag luam kom lub teeb thiab muaj zog.
Magnesium yog cov hlau uas muaj zog heev thiab lub teeb. Nws yog ib txwm pom raws li nws cov oxide qhov twg magnesium yog npog los ntawm ib txheej nyias ntawm nws oxide uas yog impermeable thiab nyuaj rau tshem tawm. Magnesium reacts nrog dej ntawm chav tsev kub ib txwm, thiab hydrogen npuas tuaj yeem pom tsim thaum nws los rau hauv dej. Magnesium kuj reacts nrog feem ntau ntawm cov acids thiab thaum nws reacts nrog HCl, magnesium chloride yog tsim thiab hydrogen gas tawm.
Magnesium yog o thaum nws nyob hauv cov hmoov, tab sis nws nyuaj rau hlawv nws thaum nws loj tuaj. Tab sis thaum nws tau ignited, nws yuav nyuaj rau tua cov nplaim taws, uas yog vim li cas magnesium tau siv los ua riam phom hauv WW II. Magnesium hlawv nrog lub teeb ci dawb uas yog vim li cas nws thiaj siv rau hauv kev tsim cov foob pob hluav taws.
Magnesium kuj yog siv los ua cov khoom siv, thiab feem ntau peb siv cov khoom tom qab hlau thiab txhuas. Nws yog hu ua lub lightest pab tau hlau. Ntau cov alloys ntawm magnesium thiab txhuas yog tsim los ntawm cov khoom zoo heev ntawm magnesium. Alloy log ntawm lub tsheb yog ua los ntawm ib tug alloy ntawm magnesium thiab hu ua mag log. Magnesium yog siv dav hauv cov khoom siv hluav taws xob thiab hluav taws xob vim nws cov khoom siv hluav taws xob thiab ntau yam khoom siv hluav taws xob yog tsim los ntawm magnesium thiab siv hauv cov khoom siv xws li xov tooj ntawm tes, khoos phis tawj, koob yees duab thiab lwm yam khoom siv hluav taws xob.
Magnesium Oxide
Magnesium oxide yog ib qho chaw ntawm magnesium thiab pom ib txwm ua cov khoom dawb. Nws tseem hu ua magnesia thiab sawv cev ua MgO. Nws yog tsim thaum hlau magnesium reacts nrog oxygen. Nws yog hygroscopic heev thiab yog li nws yuav tsum tau tiv thaiv los ntawm ya raws. Thaum nws los rau hauv kev sib cuag nrog dej, nws yooj yim tsim ib hydroxide ntawm magnesium hu ua magnesium hydroxide. Txawm li cas los xij, nws muaj peev xwm hloov nws rov qab rau MgO los ntawm cua sov.
Magnesium oxide yog cov khoom sib xyaw uas muaj cov khoom sib txawv li magnesium thiab muaj kev cuam tshuam zoo heev. Cov cuab yeej no ua rau kev lag luam refractive siv nws feem ntau, tab sis nws kuj pom kev siv hauv kev ua liaj ua teb, kev tsim kho, kev siv tshuaj lom neeg thiab kev lag luam. Magnesium oxide yog dav siv thoob plaws ntiaj teb los ua Portland cement. Nws yog siv rau hauv cov hmoov los ntawm kev khaws cov phau ntawv hauv tsev qiv ntawv vim nws yog noo noo absorbent txuag cov phau ntawv los ntawm noo noo.
MgO yog siv nyob rau hauv kev kho mob ntiaj teb no ua tshuaj rau mob plawv thiab acidity. Ntau cov tshuaj antacids thiab laxatives yog tsim los ntawm MgO. Nws kuj raug sau los ntawm kws kho mob rau kev kho mob plab.
MgO kuj pom siv hauv kev lag luam optic nrog rau ua cov kab hluav taws xob.
