Qhov sib txawv tseem ceeb ntawm magnesium oxide thiab magnesium hydroxide yog magnesium oxide muaj ib qho oxide anion rau ib qho magnesium cation, whereas magnesium hydroxide muaj ob hydroxide anions ib qho magnesium cation.
Yog li, qhov sib txawv ntawm magnesium oxide thiab magnesium hydroxide yog cov qauv tshuaj ntawm ob lub tebchaw. Cov tshuaj formula ntawm magnesium oxide yog MgO thaum cov tshuaj formula ntawm magnesium hydroxide yog Mg(OH)2.
Magnesium Oxide yog dab tsi?
Magnesium oxide yog cov khoom sib xyaw uas muaj cov tshuaj formula MgO. Nws yog dawb, hygroscopic khoom ntxhia. Nws yog ib qho tseem ceeb heev raws li qhov chaw ntawm magnesium. Txawm hais tias tus qauv ntawm cov tshuaj no yog MgO, nws tshwm sim raws li lub lattice uas muaj magnesium cations thiab oxide anions tuav ua ke los ntawm ionic bonds. Thaum muaj dej, magnesium oxide hloov mus rau hauv magnesium hydroxide. Tsis tas li ntawd, peb tuaj yeem thim rov qab cov tshuaj tiv thaiv no los ntawm cua sov lub compound kom tshem tawm cov dej noo.
Daim duab 01: Magnesium Oxide yog cov khoom siv hmoov dawb
Peb tuaj yeem tsim cov tshuaj no los ntawm calcination ntawm magnesium carbonate. Tsis tas li ntawd, yog tias peb calcine magnesium carbonate ntawm qhov kub sib txawv, nws yuav muab magnesium oxide nrog sib txawv reactivity. Piv txwv li, yog tias peb siv qhov kub thiab txias (kwv yees li 1500 - 2000 ° C), nws muab ib daim ntawv tsis muaj zog uas tuaj yeem siv los ua cov khoom siv refractory.
Thaum xav txog cov ntawv thov ntawm magnesium oxide, nws yog qhov tseem ceeb ua cov khoom siv refractory, tseem ceeb ua cov khoom tseem ceeb hauv ntau cov ntaub ntawv tsim kho, xws li cov khoom tseem ceeb hauv Portland cement, ua khoom noj khoom haus ntxiv, raws li kev siv rau xim dawb hauv colourmetry, thiab lwm yam.
Magnesium Hydroxide yog dab tsi?
Magnesium hydroxide yog cov tshuaj lom neeg muaj tshuaj mis Mg (OH) 2. Nws yog cov khoom dawb, tab sis tsis zoo li magnesium oxide, qhov sib xyaw no tsis yog hygroscopic vim tias nws muaj dej solubility tsawg. Nws tshwm sim hauv qhov xwm txheej raws li cov ntxhia brucite.
Daim duab 02: Qhov tshwm sim ntawm Magnesium Hydroxide
Peb tuaj yeem tsim cov tshuaj no yooj yim los ntawm kev ntxiv dej rau magnesium oxide. Los yog lwm yam, peb tuaj yeem tsim nws los ntawm kev sib xyaw cov tshuaj magnesium ntsev nrog dej alkaline. Yog li, qhov tshuaj tiv thaiv no ua rau muaj nag lossis daus ntawm magnesium hydroxide. Txawm li cas los xij, hauv kev lag luam nplai, peb tsim cov khoom siv no los ntawm kev kho dej hiav txwv nrog txiv qaub. Thiab, qhov tshuaj tiv thaiv no muab tons ntawm magnesium hydroxide.
Thaum xav txog kev siv cov khoom sib xyaw no, nws yog qhov tseem ceeb tshaj plaws raws li lub hauv paus rau kev tsim cov magnesium oxide. Ntxiv mus, nyob rau hauv nws daim ntawv ncua kev kawm ntawv, cov khoom no yog ib qho tseem ceeb raws li ib tug antacid los yog raws li ib tug laxative. Tsis tas li ntawd, nws muaj txiaj ntsig zoo li khoom noj khoom haus ntxiv. Tsis tas li ntawd, cov khoom no yog ib qho tseem ceeb rau neutralize acidic pov tseg dej.
Qhov txawv ntawm Magnesium Oxide thiab Magnesium Hydroxide yog dab tsi?
Magnesium oxide yog cov tshuaj muaj cov tshuaj formula MgO, thaum Magnesium hydroxide yog cov tshuaj lom neeg muaj tshuaj formula Mg(OH)2 Qhov sib txawv tseem ceeb ntawm magnesium oxide thiab magnesium hydroxide yog tias magnesium oxide muaj oxide anion ib magnesium cation, whereas magnesium hydroxide muaj ob hydroxide anions rau ib magnesium cation.
Tsis tas li ntawd, magnesium oxide yog hygroscopic, tab sis magnesium hydroxide tsis hygroscopic. Qhov ntawd txhais tau tias; magnesium oxide yog dej soluble heev, tab sis magnesium hydroxide tsis zoo dej soluble.
Cov hauv qab no nthuav tawm ntau qhov sib piv ntsig txog qhov sib txawv ntawm magnesium oxide thiab magnesium hydroxide.
Summary – Magnesium Oxide vs Magnesium Hydroxide
Magnesium oxide yog cov khoom sib xyaw uas muaj cov tshuaj formula MgO thaum Magnesium hydroxide yog cov tshuaj lom neeg muaj tshuaj formula Mg(OH) 2 Hauv cov ntsiab lus, qhov sib txawv tseem ceeb ntawm magnesium oxide thiab magnesium hydroxide yog magnesium oxide muaj oxide anion rau magnesium cation, hos magnesium hydroxide muaj ob hydroxide anions ib magnesium cation.
