Qhov Tseem Ceeb - Manganese vs. Magnesium
Magnesium (Mg) thiab Manganese (Mn) muaj suab npe zoo sib xws; lawv yog ob qho tib si hlau ntsiab lus nyob rau hauv lub sij hawm lub sij hawm thiab lawv yog ob qho tib si tseem ceeb cov as-ham xav tau los ntawm tib neeg lub cev. Qhov sib txawv tseem ceeb ntawm Manganese thiab Magnesium yog Manganese (Mn) yog cov hlau hloov pauv hauv d-block ntawm lub rooj zaum, thaum Magnesium (Mg) yog alkaline ntiaj teb hlau hauv s-block. Ob qho tib si Magnesium thiab Manganese muaj kev siv zoo sib xws, tab sis lawv txoj haujlwm thiab cov khoom sib txawv. Piv txwv li, ob qho tib si siv nyob rau hauv alloys, tab sis lawv cov khoom thiab kev siv tsis zoo sib xws. Lawv ob leeg xav tau rau tib neeg lub cev, tab sis lawv muaj lub luag haujlwm sib txawv.
Manganese yog dab tsi?
Manganese yog d-block keeb, thiab nws yog ib tug tswv cuab ntawm cov hlau hloov pauv. Nws yog cov hlau greyish, tawv, denser thiab brittle metallic keeb uas nyuaj rau kev txiav, duab lossis khoov hauv nws daim ntawv ntshiab. Manganese tsis muaj nyob rau hauv daim ntawv ntshiab hauv qhov; nws ib txwm ua ke nrog oxygen lossis nrog lwm cov khoom. Cov piv txwv feem ntau ntawm Manganese ores yog; pyrolusite, manganite, psilomelane, thiab rhodochrosite. Tsis tas li ntawd, nws tuaj yeem pom hauv cov hlau ore. Manganese yog cov hlau tseem ceeb, thiab nws qhia tau hais tias ntau lub xeev oxidation; +7, +6, +4, +3, +2, 0, -1.
Magnesium yog dab tsi?
Magnesium yog cov xim dawb-dawb, lub teeb xim hlau heev nyob rau hauv pawg II ntawm lub sijhawm. Nws cov qauv siv lead ua yog hexagonal. Magnesium yog cov hlau uas muag muag, tab sis nws muaj zog. Yog li ntawd, cov alloys uas muaj Magnesium kuj yog mos thiab muaj zog. Nws yog heev reactive; reacts nrog yuav luag tag nrho cov acids thiab feem ntau ntawm cov non-metals. Tab sis nws cov reactivity nrog cov organic tshuaj yog tsawg heev. Magnesium tsis qhia ntau lub xeev oxidation; nws tus lej oxidation yog +2.
Dab tsi yog qhov txawv ntawm Manganese thiab Magnesium?
Khoom ntawm Manganese thiab magnesium:
| khoom | Manganese | Magnesium |
| Symbol | Mn | Mg |
| State | Tshuaj | Tshuaj |
| Atomic Number | 25 | 12 |
| Group | Kev hloov pauv hlau | Alkaline Earth Metal |
| Melting Point | 1246°C (22750F) | 650°C (1202°F) |
| Boiling Point | 2061°C (3742°F) | 1090°C (1994°F) |
| Density | 7.3g.cm-3 | 1.74 g.cm-3 ntawm 20 °C |
Abundance:
Manganese: Manganese yog ib qho ntawm cov ntsiab lus denser uas tshwm sim hauv cov xwm txheej raws li cov kab dawb. Feem ntau, nws kuj pom muaj ua ke nrog hlau.
Magnesium: Magnesium kuj yog ib qho khoom muaj nyob hauv ntiaj teb, ib sab ntawm hlau, silicon, thiab oxygen. Magnesium tsis yog Ameslikas pom nyob rau hauv lub ntiaj teb, nws yog tsim nyob rau hauv tus txheej txheem ntawm kev tuag ntawm lub hnub qub, uas yog hu ua supernova. Hauv cov txheej txheem no, nws tawg tawm mus rau lub ntiaj teb thiab rov qab cov ntsiab lus no mus rau lwm lub ntiaj teb.
Alloys:
Manganese: Manganese feem ntau ua ke nrog hlau yog siv los ua cov hlau ua lag luam. Cov khoom no yog cov khoom kim heev ntawm stainless hlau. Manganese ntxiv zog thiab tsawg dua corrosion zog rau alloys. Tsis tas li ntawd, nws yog siv nrog txhuas muab kev tiv thaiv corrosion.
Magnesium: Magnesium muab lub teeb thiab lub zog rau nws cov alloys. Nws kuj tseem siv nrog txhuas, muaj cov khoom tiv thaiv corrosion.
Txoj Kev Tsis Txaus Siab rau Tib Neeg Kev Noj Qab Haus Huv:
Manganese: Yog tias peb lub cev tsis tau txais Manganese ntau npaum li cas, nws yuav ua rau cov leeg tsis muaj zog, qaug dab peg. Qee zaum, nws yuav ua rau mob ntshav qab zib, mob caj dab, thiab pob txha. Manganese deficiency nyob rau hauv cov poj niam tej zaum yuav muaj cov tsos mob hnyav premenstrual syndrome, xws li mob plab los yog mus ob peb vas.
Magnesium: Cov teeb meem kev noj qab haus huv ntsig txog qhov tsis muaj manganese kom tsawg yog teeb meem pw tsaug zog, lub plawv dhia, ntuav, mob nqaij, thiab xeev siab. Qhov no tuaj yeem zam tau los ntawm kev nce magnesium kom tsawg. Nws pab txo qis kev pheej hmoo ntawm lub plawv tsis ua hauj lwm, osteoporosis, thiab ntshav siab.
