Qhov sib txawv tseem ceeb ntawm FeO thiab Fe2O3 yog tias FeO muaj hlau hauv +2 oxidation xeev, hos Fe2O3 muaj hlau hauv +3 oxidation xeev.
Hauv luv luv, FeO thiab Fe2O3 yog oxides ntawm hlau tab sis muaj cov hlau atoms nyob rau hauv txawv oxidation xeev. FeO yog cov tshuaj formula ntawm hlau (II) oxide thaum Fe2O3 yog cov tshuaj formula ntawm hlau (III) oxide. Ob yam khoom no muaj cov khoom siv tshuaj sib txawv, tshwm sim, nrog rau kev siv sib txawv. Hauv kab lus no, peb yuav tham txog cov khoom no thiab muab piv rau lawv kom pom qhov txawv ntawm FeO thiab Fe2O3.
FeO yog dab tsi?
FeO yog hlau (II) oxide. Nws tseem hu ua ferrous oxide. Nws yog ib qho inorganic compound uas tshwm li cov xim dub. Vim nws qhov tsos, qee zaum tib neeg tsis meej pem nrog xeb. Cov ntxhia hauv daim ntawv ntawm cov khoom no yog wustite. Cov tshuaj no muaj cov molar loj ntawm 71.84 g / mol thiab yog insoluble hauv dej. Ntxiv mus, FeO yog insoluble hauv alkali cawv, tab sis nws dissolves nyob rau hauv acids.
Peb tuaj yeem tsim FeO los ntawm thermal decomposition ntawm hlau (II) oxalate. Peb tuaj yeem ua cov txheej txheem no nyob rau hauv qhov chaw tsis muaj zog kom tsis txhob tsim cov hlau (II) oxide.
Daim duab 01: FeO
Thermodynamically, FeO tsis ruaj khov ntawm qhov kub thiab txias (hauv qab 575 degrees Celsius); Yog li ntawd, nws zoo li tsis sib xws rau hauv cov hlau thiab Fe3O4, lwm yam oxide ntawm hlau. Feem ntau, hlau (II) oxide muaj ib tug cubic, pob zeb ntsev qauv nyob rau hauv uas hlau atoms yog teem nyob rau hauv ib tug octahedral yam uas yog kev koom tes los ntawm oxygen atoms. Tag nrho cov pa oxygen atoms kuj tau koom tes los ntawm hlau atoms octahedrally. Txawm li cas los xij, peb hais tias cov khoom no tsis yog stiochiometric vim qee qhov Fe (II) ions hauv cov khoom no tau yooj yim hloov los ntawm Fe (III) ions, thiab cov Fe (III) ions no muaj tetrahedral geometry nyob ib ncig ntawm lawv, tsis zoo li lub octahedral geometry. ntawm Fe(II) ions.
kwv yees li, 9% ntawm lub ntiaj teb lub tsho tiv no yog ua los ntawm FeO, thiab nyob rau hauv lub mantle, cov khoom no yuav tshwm sim raws li cov khoom siv hluav taws xob uas muaj peev xwm piav qhia txog kev cuam tshuam hauv lub ntiaj teb kev sib hloov.
Thaum xav txog kev siv FeO, nws muaj txiaj ntsig zoo li cov xim uas FDA pom zoo siv rau hauv cov tshuaj pleev ib ce. Peb kuj tuaj yeem siv nws hauv qee qhov tattoo inks. Ntxiv mus, cov tshuaj no yog ib qho tseem ceeb raws li ib tug phosphate tshem tawm ntawm lub tsev aquaria.
Fe2O3 yog dab tsi?
Fe2O3 yog hlau (III) oxide. Cov hlau oxide liab yog ferric oxide thiab muaj cov tshuaj formula Fe2O3. Nws lub npe tshuaj yog hlau (III) oxide. Ntxiv mus, nws yog ib tug loj oxide ntawm hlau, thiab nyob rau hauv mineralogy, peb hu no compound "hematite". Nws yog lub hauv paus ntawm cov hlau rau kev lag luam steel thiab yog ferromagnetic. Nws cov molar loj yog 159.69 g / mol thaum nws melting point nyob ib ncig ntawm 1,539-1,565 ° C. Nws yooj yim decomposes ntawm qhov kub siab dua. Yog li ntawd, cov compound no yog insoluble nyob rau hauv dej.
Daim duab 02: Fe2O3
Tsis tas li ntawd, muaj cov qauv sib txawv ntawm cov khoom sib xyaw no; Peb hu lawv "polymorphs". Piv txwv li: alpha theem, gamma theem, thiab lwm yam. Nyob rau hauv txhua tus qauv, ib tug hlau cation khi nrog rau oxygen ligands (nyob ib ncig ntawm cov hlau cation). Ntxiv mus, muaj ib co hydrated daim ntawv ntawm no compound ib yam nkaus thiab. Qhov tseem ceeb tshaj, liab hlau oxide tshwm sim raws li cov khoom liab-xim av. Li no, nws yog qhov qhia tau zoo rau peb kom paub txog qhov sib xyaw no los ntawm lwm cov hlau oxides.
Qhov txawv ntawm FeO thiab Fe2O3 yog dab tsi?
FeO thiab Fe2O3 yog cov oxides ntawm cov hlau uas muaj cov oxidation sib txawv ntawm cov hlau atoms. Qhov sib txawv tseem ceeb ntawm FeO thiab Fe2O3 yog tias FeO muaj hlau hauv +2 oxidation xeev, hos Fe2O3 muaj hlau hauv +3 oxidation xeev. Ntxiv mus, FeO yog cov hmoov dub thaum Fe2O3 yog cov hmoov liab.
Cov hauv qab no infographic tabulates ntau qhov sib txawv ntawm FeO thiab Fe2O3.
Summary – FeO vs Fe2O3
FeO thiab Fe2O3 yog cov oxides ntawm cov hlau uas muaj cov oxidation sib txawv ntawm cov hlau atoms. Lawv kuj muaj qhov sib txawv thiab. Qhov sib txawv tseem ceeb ntawm FeO thiab Fe2O3 yog tias FeO muaj hlau hauv +2 oxidation xeev, hos Fe2O3 muaj hlau hauv +3 oxidation xeev.
