Qhov sib txawv tseem ceeb ntawm calcium carbonate thiab calcium oxide yog tias calcium carbonate zoo li ua rau decomposition thaum cua sov mus rau qhov kub siab, hos calcium oxide ruaj khov heev rau kev kho cua sov.
Calcium carbonate thiab calcium oxide yog ib qho tseem ceeb ntawm cov tshuaj calcium hlau. Cov tshuaj no muaj ntau yam kev siv hauv kev lag luam.
Calcium Carbonate yog dab tsi?
Calcium carbonate yog cov carbonate ntawm calcium uas muaj cov tshuaj formula CaCO 3 Cov tshuaj no ib txwm tshwm sim li limestone, chalk, calcite, thiab lwm yam. pob zeb. Piv txwv li: calcite lossis aragonite (Limestone muaj ob daim ntawv no). Calcium carbonate tshwm sim li dawb hexagonal crystals lossis hmoov, thiab nws tsis muaj ntxhiab.
Daim duab 01: Pom ntawm Calcium Carbonate
Ntxiv mus, Calcium carbonate muaj ib qho chalky saj. Cov molar loj ntawm cov tshuaj no yog 100 g / mol, thiab lub melting point yog 1,339 ° C (rau daim ntawv calcite). Txawm li cas los xij, nws tsis muaj qhov kub hnyiab vim tias qhov sib xyaw no decomposes ntawm qhov kub thiab txias. Peb tuaj yeem tau txais qhov sib xyaw no los ntawm kev khawb cov calcium uas muaj cov zaub mov. Tab sis daim ntawv no tsis yog dawb huv. Peb tuaj yeem tau txais daim ntawv ntshiab uas siv cov khoom siv dawb huv xws li marble. Thaum calcium carbonate reacts nrog acids, nws tsim CO2 roj. Thaum nws tshwm sim nrog dej, nws tsim calcium hydroxide. Ntxiv nrog rau cov no, nws tuaj yeem raug thermal decomposition, tso CO2 roj.
Calcium Oxide yog dab tsi?
Calcium oxide yog ib qho inorganic compound uas muaj cov tshuaj formula CaO. Nws tseem muaj npe hu ua quicklime lossis burnt txiv qaub. Peb tuaj yeem piav qhia txog cov khoom no ua dawb, caustic, alkaline, thiab crystalline compound. Nws tseem tsw tsw ntxhiab thiab.
Daim duab 02: Pom ntawm Calcium Oxide
Txog kev npaj cov calcium oxide, cov khoom no feem ntau yog tsim los ntawm thermal decomposition ntawm limestone los yog seashells uas muaj calcium carbonate nyob rau hauv ib lub txiv qaub kiln. Hauv cov txheej txheem kev npaj no, peb yuav tsum ua kom sov cov reactants kom siab tshaj 625 degrees Celsius. Qhov kev kho cua sov no hu ua calcination. Cov txheej txheem no tso tawm cov pa roj carbon dioxide molecular, uas tawm sai sai. Txij li thaum quicklime tsis ruaj khov, nws tuaj yeem cuam tshuam nrog carbon dioxide thaum txias, thiab tom qab lub sijhawm txaus, nws yuav rov qab mus rau calcium carbonate. Yog li ntawd, peb yuav tsum tau slack nws nrog dej los teem nws li txiv qaub plaster los yog txiv qaub mortar.
Thaum xav txog kev siv cov calcium oxide, kev siv loj yog nyob rau hauv cov txheej txheem oxygen steelmaking, qhov twg nws tuaj yeem ua rau cov kua qaub oxides, silicone oxide, aluminium oxide thiab ferric oxide, ua rau cov slag molten. Lwm daim ntawv thov tseem ceeb ntawm calcium oxide yog siv rau hauv kev tsim cov pob zeb aerated uas muaj qhov sib txawv.
Qhov txawv ntawm Calcium Carbonate thiab Calcium Oxide yog dab tsi?
Calcium carbonate yog cov carbonate ntawm calcium uas muaj cov tshuaj formula CaCO 3,thaum Calcium oxide yog ib qho inorganic compound uas muaj cov tshuaj formula CaO. Qhov sib txawv tseem ceeb ntawm calcium carbonate thiab calcium oxide yog tias calcium carbonate zoo li mus rau decomposition thaum cua sov mus rau qhov kub thiab txias, thaum calcium oxide ruaj khov heev rau kev kho cua sov.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm calcium carbonate thiab calcium oxide nyob rau hauv daim ntawv tabular.
Summary – Calcium Carbonate vs Calcium Oxide
Calcium carbonate thiab calcium oxide yog ib qho tseem ceeb ntawm cov tshuaj calcium hlau. Qhov sib txawv tseem ceeb ntawm calcium carbonate thiab calcium oxide yog tias calcium carbonate zoo li mus rau decomposition thaum cua sov mus rau qhov kub thiab txias, thaum calcium oxide ruaj khov heev rau kev kho cua sov.
