Qhov sib txawv tseem ceeb ntawm calcium chloride thiab magnesium chloride yog tias calcium chloride muaj calcium cation nrog ob chloride anions whereas magnesium chloride muaj magnesium cation nrog ob chloride anions.
Ob leeg calcium chloride thiab magnesium chloride yog cov ntsev sib xyaw uas muaj cations thiab anions. Cov no yog cov khib nyiab ntawm chav tsev kub uas yog soluble hauv dej heev. Ntxiv mus, ob qho no yog siv los tswj cov plua plav. Cia peb tham ntxiv txog lawv.
Calcium Chloride yog dab tsi?
Calcium chloride yog ib qho ntsev inorganic uas muaj calcium ion txuam nrog ob chloride ions. Cov tshuaj formula ntawm no compound yog CaCl2. Molar mass yog 110.9 g / mol. Nyob rau hauv chav tsev kub, nws tshwm sim raws li ib tug crystalline dawb khoom. Tsis tas li ntawd, nws yog hygroscopic thiab yooj yim yaj hauv dej. Yog li ntawd peb tuaj yeem siv nws ua tus desiccant. Nws muaj raws li daim ntawv anhydrous lossis hydrated forms. Cov ntsiab lus melting thiab boiling ntawm anhydrous calcium chloride yog 775 ° C thiab 1, 935 ° C feem. Txoj kev loj ntawm kev tsim cov calcium chloride yog raws li cov khoom siv los ntawm cov txheej txheem Solvay. Nws siv limestone.
2 NaCl + CaCO3 → Na2CO3 + CaCl 2
Ib qho ntawm cov ntawv thov tseem ceeb ntawm cov tshuaj no yog ua tus neeg sawv cev de-icing. Nws de-ices los ntawm kev nyuaj siab qhov chaw txias dej.
Daim duab 01: Calcium Chloride Crystals
Daim ntawv thov thib ob loj tshaj plaws yog tias nws siv los ua tus neeg saib xyuas plua plav. Vim nws cov khoom hygroscopic, cov tshuaj muaj zog tuaj yeem khaws cov kua txheej ntawm cov av ntawm txoj kev. Li no nws tswj cov plua plav. Ntxiv mus, nws tuaj yeem ua kom cov dej hardness. Piv txwv li: txhawm rau ua kom cov dej tawv tawv hauv cov pas dej da dej.
Magnesium Chloride yog dab tsi?
Magnesium chloride yog cov ntsev inorganic uas muaj magnesium ion txuam nrog ob chloride ions. Cov tshuaj formula ntawm no compound yog MgCl2. Qhov hnyav ntawm molar yog 95 g / mol. Lub melting point thiab boiling point yog 714 ° C thiab 1, 412 ° C feem. Nyob rau hauv chav tsev kub, nws tshwm sim raws li ib tug dawb los yog tsis muaj xim crystalline khoom. Nws yog dej soluble heev thiab muaj nyob rau hauv cov ntaub ntawv hydrated thiab. Peb tuaj yeem rho tawm daim ntawv hydrate los ntawm brine lossis dej hiav txwv. Muaj ob peb hydrates ntawm no compound uas muaj 2, 4, 6, 8 los yog 12 dej molecules. Cov hydrates no poob cov dej molecules thaum cua sov. Peb tuaj yeem tsim cov khoom sib xyaw no los ntawm cov txheej txheem Dow. Nyob ntawd, magnesium chloride regenerates los ntawm magnesium hydroxide raws li cov tshuaj tiv thaiv nrog hydrochloric acid.
Mg(OH)2(s) + 2 HCl → MgCl2(aq)+ 2 H2O(l)
Ib daim ntawv thov tseem ceeb ntawm anhydrous magnesium chloride yog tias nws muaj txiaj ntsig zoo ua cov khoom ua ntej tsim cov hlau magnesium.
Daim duab 02: Magnesium Chloride Crystals
Peb tuaj yeem tsim cov hlau no los ntawm electrolysis ntawm MgCl2. Ntxiv mus, peb tuaj yeem siv qhov sib xyaw no rau kev tswj cov plua plav, kev ruaj khov, cua yaig mitigation, thiab lwm yam. Raws li lwm qhov tseem ceeb, peb siv MgCl2 ua ib qho kev txhawb nqa rau Ziegler-Natta catalyst.
Qhov txawv ntawm Calcium Chloride thiab Magnesium Chloride yog dab tsi?
Calcium chloride yog ib qho ntsev inorganic uas muaj calcium ion txuam nrog ob chloride ions. Yog li, cov tshuaj formula ntawm cov tshuaj no yog CaCl2. Nws molar mass yog 110.9 g / mol. Ntxiv mus, cov ntsiab lus melting thiab boiling ntawm anhydrous calcium chloride yog 775 ° C thiab 1, 935 ° C feem. Magnesium chloride yog cov ntsev inorganic uas muaj magnesium ion txuam nrog ob chloride ions. Yog li cov tshuaj formula ntawm no compound yog MgCl2. Nws qhov hnyav yog 95 g / mol. Ntxiv rau qhov ntawd, lub melting point thiab boiling point ntawm anhydrous magnesium chloride yog 714 ° C thiab 1, 412 ° C raws li. Cov tebchaw no muaj kev siv sib txawv, tab sis ib qho sib xws; ob leeg yog cov tseem ceeb tswj cov plua plav.
Summary – Calcium Chloride vs Magnesium Chloride
Ob qho calcium thiab magnesium chloride yog qhov tseem ceeb raws li cov tshuaj tiv thaiv plua plav. Qhov txawv ntawm calcium chloride thiab magnesium chloride yog tias calcium chloride muaj calcium cation nrog ob chloride anions whereas magnesium chloride muaj magnesium cation nrog ob chloride anions.
